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24268cd0 PR |
1 | /* |
2 | * Zebra EVPN for VxLAN code | |
3 | * Copyright (C) 2016, 2017 Cumulus Networks, Inc. | |
4 | * | |
5 | * This file is part of FRR. | |
6 | * | |
7 | * FRR is free software; you can redistribute it and/or modify it | |
8 | * under the terms of the GNU General Public License as published by the | |
9 | * Free Software Foundation; either version 2, or (at your option) any | |
10 | * later version. | |
11 | * | |
12 | * FRR is distributed in the hope that it will be useful, but | |
13 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
15 | * General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License | |
18 | * along with FRR; see the file COPYING. If not, write to the Free | |
19 | * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA | |
20 | * 02111-1307, USA. | |
21 | */ | |
22 | ||
23 | #include <zebra.h> | |
24 | ||
25 | #include "hash.h" | |
b2998086 | 26 | #include "interface.h" |
24268cd0 | 27 | #include "jhash.h" |
24268cd0 PR |
28 | #include "memory.h" |
29 | #include "prefix.h" | |
24268cd0 | 30 | #include "vlan.h" |
b2998086 | 31 | #include "json.h" |
bf902d4c | 32 | #include "printfrr.h" |
24268cd0 | 33 | |
b2998086 | 34 | #include "zebra/zserv.h" |
24268cd0 | 35 | #include "zebra/debug.h" |
b2998086 | 36 | #include "zebra/zebra_router.h" |
b2998086 | 37 | #include "zebra/zebra_errors.h" |
24268cd0 | 38 | #include "zebra/zebra_vrf.h" |
b2998086 | 39 | #include "zebra/zebra_evpn.h" |
24268cd0 | 40 | #include "zebra/zebra_evpn_mh.h" |
b2998086 PR |
41 | #include "zebra/zebra_evpn_mac.h" |
42 | #include "zebra/zebra_evpn_neigh.h" | |
24268cd0 | 43 | |
24268cd0 | 44 | DEFINE_MTYPE_STATIC(ZEBRA, MAC, "EVPN MAC"); |
24268cd0 PR |
45 | |
46 | /* | |
47 | * Return number of valid MACs in an EVPN's MAC hash table - all | |
48 | * remote MACs and non-internal (auto) local MACs count. | |
49 | */ | |
f6371c34 | 50 | uint32_t num_valid_macs(struct zebra_evpn *zevpn) |
24268cd0 PR |
51 | { |
52 | unsigned int i; | |
53 | uint32_t num_macs = 0; | |
54 | struct hash *hash; | |
55 | struct hash_bucket *hb; | |
3198b2b3 | 56 | struct zebra_mac *mac; |
24268cd0 PR |
57 | |
58 | hash = zevpn->mac_table; | |
59 | if (!hash) | |
60 | return num_macs; | |
61 | for (i = 0; i < hash->size; i++) { | |
62 | for (hb = hash->index[i]; hb; hb = hb->next) { | |
3198b2b3 | 63 | mac = (struct zebra_mac *)hb->data; |
24268cd0 PR |
64 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE) |
65 | || CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL) | |
66 | || !CHECK_FLAG(mac->flags, ZEBRA_MAC_AUTO)) | |
67 | num_macs++; | |
68 | } | |
69 | } | |
70 | ||
71 | return num_macs; | |
72 | } | |
73 | ||
f6371c34 | 74 | uint32_t num_dup_detected_macs(struct zebra_evpn *zevpn) |
24268cd0 PR |
75 | { |
76 | unsigned int i; | |
77 | uint32_t num_macs = 0; | |
78 | struct hash *hash; | |
79 | struct hash_bucket *hb; | |
3198b2b3 | 80 | struct zebra_mac *mac; |
24268cd0 PR |
81 | |
82 | hash = zevpn->mac_table; | |
83 | if (!hash) | |
84 | return num_macs; | |
85 | for (i = 0; i < hash->size; i++) { | |
86 | for (hb = hash->index[i]; hb; hb = hb->next) { | |
3198b2b3 | 87 | mac = (struct zebra_mac *)hb->data; |
24268cd0 PR |
88 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_DUPLICATE)) |
89 | num_macs++; | |
90 | } | |
91 | } | |
92 | ||
93 | return num_macs; | |
94 | } | |
95 | ||
8b07f173 AK |
96 | /* Setup mac_list against the access port. This is done when a mac uses |
97 | * the ifp as destination for the first time | |
98 | */ | |
99 | static void zebra_evpn_mac_ifp_new(struct zebra_if *zif) | |
100 | { | |
101 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC) | |
102 | zlog_debug("MAC list created for ifp %s (%u)", zif->ifp->name, | |
103 | zif->ifp->ifindex); | |
104 | ||
105 | zif->mac_list = list_new(); | |
106 | listset_app_node_mem(zif->mac_list); | |
107 | } | |
108 | ||
8b07f173 | 109 | /* Unlink local mac from a destination access port */ |
3198b2b3 | 110 | static void zebra_evpn_mac_ifp_unlink(struct zebra_mac *zmac) |
8b07f173 AK |
111 | { |
112 | struct zebra_if *zif; | |
113 | struct interface *ifp = zmac->ifp; | |
114 | ||
115 | if (!ifp) | |
116 | return; | |
117 | ||
118 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC) | |
119 | zlog_debug("VNI %d MAC %pEA unlinked from ifp %s (%u)", | |
120 | zmac->zevpn->vni, | |
121 | &zmac->macaddr, | |
122 | ifp->name, ifp->ifindex); | |
123 | ||
124 | zif = ifp->info; | |
125 | list_delete_node(zif->mac_list, &zmac->ifp_listnode); | |
126 | zmac->ifp = NULL; | |
127 | } | |
128 | ||
51aa2693 AK |
129 | /* Free up the mac_list if any as a part of the interface del/cleanup */ |
130 | void zebra_evpn_mac_ifp_del(struct interface *ifp) | |
131 | { | |
132 | struct zebra_if *zif = ifp->info; | |
133 | struct listnode *node; | |
134 | struct zebra_mac *zmac; | |
135 | ||
136 | if (zif->mac_list) { | |
137 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC) | |
138 | zlog_debug("MAC list deleted for ifp %s (%u)", | |
139 | zif->ifp->name, zif->ifp->ifindex); | |
140 | ||
141 | for (ALL_LIST_ELEMENTS_RO(zif->mac_list, node, zmac)) { | |
142 | zebra_evpn_mac_ifp_unlink(zmac); | |
143 | } | |
144 | list_delete(&zif->mac_list); | |
145 | } | |
146 | } | |
147 | ||
8b07f173 AK |
148 | /* Link local mac to destination access port. This is done only if the |
149 | * local mac is associated with a zero ESI i.e. single attach or lacp-bypass | |
150 | * bridge port member | |
151 | */ | |
3198b2b3 DS |
152 | static void zebra_evpn_mac_ifp_link(struct zebra_mac *zmac, |
153 | struct interface *ifp) | |
8b07f173 AK |
154 | { |
155 | struct zebra_if *zif; | |
156 | ||
157 | if (!CHECK_FLAG(zmac->flags, ZEBRA_MAC_LOCAL)) | |
158 | return; | |
159 | ||
160 | /* already linked to the destination */ | |
161 | if (zmac->ifp == ifp) | |
162 | return; | |
163 | ||
164 | /* unlink the mac from any old destination */ | |
165 | if (zmac->ifp) | |
166 | zebra_evpn_mac_ifp_unlink(zmac); | |
167 | ||
168 | if (!ifp) | |
169 | return; | |
170 | ||
171 | zif = ifp->info; | |
172 | /* the interface mac_list is created on first mac link attempt */ | |
173 | if (!zif->mac_list) | |
174 | zebra_evpn_mac_ifp_new(zif); | |
175 | ||
176 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC) | |
177 | zlog_debug("VNI %d MAC %pEA linked to ifp %s (%u)", | |
178 | zmac->zevpn->vni, | |
179 | &zmac->macaddr, | |
180 | ifp->name, ifp->ifindex); | |
181 | ||
182 | zmac->ifp = ifp; | |
183 | listnode_init(&zmac->ifp_listnode, zmac); | |
184 | listnode_add(zif->mac_list, &zmac->ifp_listnode); | |
185 | } | |
186 | ||
187 | /* If the mac is a local mac clear links to destination access port */ | |
3198b2b3 | 188 | void zebra_evpn_mac_clear_fwd_info(struct zebra_mac *zmac) |
8b07f173 AK |
189 | { |
190 | zebra_evpn_mac_ifp_unlink(zmac); | |
191 | memset(&zmac->fwd_info, 0, sizeof(zmac->fwd_info)); | |
192 | } | |
193 | ||
b2998086 PR |
194 | /* |
195 | * Install remote MAC into the forwarding plane. | |
196 | */ | |
3198b2b3 | 197 | int zebra_evpn_rem_mac_install(struct zebra_evpn *zevpn, struct zebra_mac *mac, |
b2998086 | 198 | bool was_static) |
24268cd0 | 199 | { |
b2998086 | 200 | const struct zebra_if *zif, *br_zif; |
8d30ff3b | 201 | const struct zebra_vxlan_vni *vni; |
b2998086 PR |
202 | bool sticky; |
203 | enum zebra_dplane_result res; | |
204 | const struct interface *br_ifp; | |
205 | vlanid_t vid; | |
206 | uint32_t nhg_id; | |
207 | struct in_addr vtep_ip; | |
24268cd0 | 208 | |
b2998086 PR |
209 | zif = zevpn->vxlan_if->info; |
210 | if (!zif) | |
211 | return -1; | |
212 | ||
213 | br_ifp = zif->brslave_info.br_if; | |
214 | if (br_ifp == NULL) | |
215 | return -1; | |
216 | ||
8d30ff3b SR |
217 | vni = zebra_vxlan_if_vni_find(zif, zevpn->vni); |
218 | if (!vni) | |
219 | return -1; | |
b2998086 PR |
220 | |
221 | sticky = !!CHECK_FLAG(mac->flags, | |
222 | (ZEBRA_MAC_STICKY | ZEBRA_MAC_REMOTE_DEF_GW)); | |
223 | ||
224 | /* If nexthop group for the FDB entry is inactive (not programmed in | |
225 | * the dataplane) the MAC entry cannot be installed | |
226 | */ | |
227 | if (mac->es) { | |
228 | if (!(mac->es->flags & ZEBRA_EVPNES_NHG_ACTIVE)) | |
229 | return -1; | |
230 | nhg_id = mac->es->nhg_id; | |
231 | vtep_ip.s_addr = 0; | |
232 | } else { | |
233 | nhg_id = 0; | |
234 | vtep_ip = mac->fwd_info.r_vtep_ip; | |
24268cd0 PR |
235 | } |
236 | ||
b2998086 PR |
237 | br_zif = (const struct zebra_if *)(br_ifp->info); |
238 | ||
239 | if (IS_ZEBRA_IF_BRIDGE_VLAN_AWARE(br_zif)) | |
8d30ff3b | 240 | vid = vni->access_vlan; |
b2998086 PR |
241 | else |
242 | vid = 0; | |
243 | ||
244 | res = dplane_rem_mac_add(zevpn->vxlan_if, br_ifp, vid, &mac->macaddr, | |
b95ce8fa | 245 | vni->vni, vtep_ip, sticky, nhg_id, was_static); |
b2998086 PR |
246 | if (res != ZEBRA_DPLANE_REQUEST_FAILURE) |
247 | return 0; | |
248 | else | |
249 | return -1; | |
24268cd0 PR |
250 | } |
251 | ||
b2998086 PR |
252 | /* |
253 | * Uninstall remote MAC from the forwarding plane. | |
254 | */ | |
3198b2b3 DS |
255 | int zebra_evpn_rem_mac_uninstall(struct zebra_evpn *zevpn, |
256 | struct zebra_mac *mac, bool force) | |
24268cd0 | 257 | { |
b2998086 | 258 | const struct zebra_if *zif, *br_zif; |
8d30ff3b | 259 | struct zebra_vxlan_vni *vni; |
b2998086 PR |
260 | struct in_addr vtep_ip; |
261 | const struct interface *ifp, *br_ifp; | |
262 | vlanid_t vid; | |
263 | enum zebra_dplane_result res; | |
24268cd0 | 264 | |
f3722826 AK |
265 | /* If the MAC was not installed there is no need to uninstall it */ |
266 | if (!force && mac->es && !(mac->es->flags & ZEBRA_EVPNES_NHG_ACTIVE)) | |
267 | return -1; | |
268 | ||
b2998086 PR |
269 | if (!zevpn->vxlan_if) { |
270 | if (IS_ZEBRA_DEBUG_VXLAN) | |
271 | zlog_debug( | |
272 | "VNI %u hash %p couldn't be uninstalled - no intf", | |
273 | zevpn->vni, zevpn); | |
274 | return -1; | |
275 | } | |
24268cd0 | 276 | |
b2998086 PR |
277 | zif = zevpn->vxlan_if->info; |
278 | if (!zif) | |
279 | return -1; | |
24268cd0 | 280 | |
b2998086 PR |
281 | br_ifp = zif->brslave_info.br_if; |
282 | if (br_ifp == NULL) | |
283 | return -1; | |
24268cd0 | 284 | |
8d30ff3b SR |
285 | vni = zebra_vxlan_if_vni_find(zif, zevpn->vni); |
286 | if (!vni) | |
287 | return -1; | |
24268cd0 | 288 | |
b2998086 | 289 | br_zif = (const struct zebra_if *)br_ifp->info; |
24268cd0 | 290 | |
b2998086 | 291 | if (IS_ZEBRA_IF_BRIDGE_VLAN_AWARE(br_zif)) |
8d30ff3b | 292 | vid = vni->access_vlan; |
b2998086 PR |
293 | else |
294 | vid = 0; | |
24268cd0 | 295 | |
b2998086 PR |
296 | ifp = zevpn->vxlan_if; |
297 | vtep_ip = mac->fwd_info.r_vtep_ip; | |
298 | ||
b95ce8fa SR |
299 | res = dplane_rem_mac_del(ifp, br_ifp, vid, &mac->macaddr, vni->vni, |
300 | vtep_ip); | |
b2998086 PR |
301 | if (res != ZEBRA_DPLANE_REQUEST_FAILURE) |
302 | return 0; | |
303 | else | |
304 | return -1; | |
24268cd0 PR |
305 | } |
306 | ||
b2998086 PR |
307 | /* |
308 | * Decrement neighbor refcount of MAC; uninstall and free it if | |
309 | * appropriate. | |
24268cd0 | 310 | */ |
3198b2b3 | 311 | void zebra_evpn_deref_ip2mac(struct zebra_evpn *zevpn, struct zebra_mac *mac) |
24268cd0 | 312 | { |
b2998086 PR |
313 | if (!CHECK_FLAG(mac->flags, ZEBRA_MAC_AUTO)) |
314 | return; | |
24268cd0 | 315 | |
b2998086 PR |
316 | /* If all remote neighbors referencing a remote MAC go away, |
317 | * we need to uninstall the MAC. | |
24268cd0 | 318 | */ |
b2998086 PR |
319 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE) |
320 | && remote_neigh_count(mac) == 0) { | |
f3722826 | 321 | zebra_evpn_rem_mac_uninstall(zevpn, mac, false /*force*/); |
b2998086 PR |
322 | zebra_evpn_es_mac_deref_entry(mac); |
323 | UNSET_FLAG(mac->flags, ZEBRA_MAC_REMOTE); | |
324 | } | |
325 | ||
243b74ed AK |
326 | /* If no references, delete the MAC. */ |
327 | if (!zebra_evpn_mac_in_use(mac)) | |
b2998086 PR |
328 | zebra_evpn_mac_del(zevpn, mac); |
329 | } | |
330 | ||
3198b2b3 | 331 | static void zebra_evpn_mac_get_access_info(struct zebra_mac *mac, |
e3f05a8a | 332 | struct interface **p_ifp, |
d9d3455e | 333 | vlanid_t *vid) |
b2998086 | 334 | { |
8d30ff3b SR |
335 | struct zebra_vxlan_vni *vni; |
336 | ||
b2998086 PR |
337 | /* if the mac is associated with an ES we must get the access |
338 | * info from the ES | |
24268cd0 | 339 | */ |
b2998086 PR |
340 | if (mac->es) { |
341 | struct zebra_if *zif; | |
342 | ||
343 | /* get the access port from the es */ | |
e3f05a8a | 344 | *p_ifp = mac->es->zif ? mac->es->zif->ifp : NULL; |
b2998086 PR |
345 | /* get the vlan from the EVPN */ |
346 | if (mac->zevpn->vxlan_if) { | |
347 | zif = mac->zevpn->vxlan_if->info; | |
8d30ff3b SR |
348 | vni = zebra_vxlan_if_vni_find(zif, mac->zevpn->vni); |
349 | *vid = vni->access_vlan; | |
b2998086 PR |
350 | } else { |
351 | *vid = 0; | |
352 | } | |
353 | } else { | |
354 | struct zebra_ns *zns; | |
355 | ||
356 | *vid = mac->fwd_info.local.vid; | |
47c58929 | 357 | zns = zebra_ns_lookup(mac->fwd_info.local.ns_id); |
e3f05a8a | 358 | *p_ifp = if_lookup_by_index_per_ns(zns, |
359 | mac->fwd_info.local.ifindex); | |
b2998086 PR |
360 | } |
361 | } | |
362 | ||
b16e8004 | 363 | #define MAC_BUF_SIZE 256 |
3198b2b3 | 364 | static char *zebra_evpn_zebra_mac_flag_dump(struct zebra_mac *mac, char *buf, |
b16e8004 DS |
365 | size_t len) |
366 | { | |
367 | if (mac->flags == 0) { | |
368 | snprintfrr(buf, len, "None "); | |
369 | return buf; | |
370 | } | |
371 | ||
372 | snprintfrr( | |
373 | buf, len, "%s%s%s%s%s%s%s%s%s%s%s%s", | |
374 | CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL) ? "LOC " : "", | |
375 | CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE) ? "REM " : "", | |
376 | CHECK_FLAG(mac->flags, ZEBRA_MAC_AUTO) ? "AUTO " : "", | |
377 | CHECK_FLAG(mac->flags, ZEBRA_MAC_STICKY) ? "STICKY " : "", | |
378 | CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE_RMAC) ? "REM Router " | |
379 | : "", | |
380 | CHECK_FLAG(mac->flags, ZEBRA_MAC_DEF_GW) ? "Default GW " : "", | |
381 | CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE_DEF_GW) ? "REM DEF GW " | |
382 | : "", | |
383 | CHECK_FLAG(mac->flags, ZEBRA_MAC_DUPLICATE) ? "DUP " : "", | |
384 | CHECK_FLAG(mac->flags, ZEBRA_MAC_FPM_SENT) ? "FPM " : "", | |
0ef63eb5 | 385 | CHECK_FLAG(mac->flags, ZEBRA_MAC_ES_PEER_ACTIVE) |
386 | ? "PEER Active " | |
387 | : "", | |
b16e8004 DS |
388 | CHECK_FLAG(mac->flags, ZEBRA_MAC_ES_PEER_PROXY) ? "PROXY " : "", |
389 | CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL_INACTIVE) | |
390 | ? "LOC Inactive " | |
391 | : ""); | |
392 | return buf; | |
393 | } | |
394 | ||
cc9f21da | 395 | static void zebra_evpn_dad_mac_auto_recovery_exp(struct thread *t) |
b2998086 PR |
396 | { |
397 | struct zebra_vrf *zvrf = NULL; | |
3198b2b3 | 398 | struct zebra_mac *mac = NULL; |
f6371c34 | 399 | struct zebra_evpn *zevpn = NULL; |
b2998086 | 400 | struct listnode *node = NULL; |
72de4110 | 401 | struct zebra_neigh *nbr = NULL; |
b2998086 PR |
402 | |
403 | mac = THREAD_ARG(t); | |
404 | ||
405 | /* since this is asynchronous we need sanity checks*/ | |
406 | zvrf = vrf_info_lookup(mac->zevpn->vrf_id); | |
407 | if (!zvrf) | |
cc9f21da | 408 | return; |
b2998086 | 409 | |
8b5fdf2e | 410 | zevpn = zebra_evpn_lookup(mac->zevpn->vni); |
b2998086 | 411 | if (!zevpn) |
cc9f21da | 412 | return; |
b2998086 PR |
413 | |
414 | mac = zebra_evpn_mac_lookup(zevpn, &mac->macaddr); | |
415 | if (!mac) | |
cc9f21da | 416 | return; |
b2998086 | 417 | |
b16e8004 DS |
418 | if (IS_ZEBRA_DEBUG_VXLAN) { |
419 | char mac_buf[MAC_BUF_SIZE]; | |
420 | ||
b2998086 | 421 | zlog_debug( |
ef7b8be4 DL |
422 | "%s: duplicate addr mac %pEA flags %slearn count %u host count %u auto recovery expired", |
423 | __func__, &mac->macaddr, | |
b16e8004 DS |
424 | zebra_evpn_zebra_mac_flag_dump(mac, mac_buf, |
425 | sizeof(mac_buf)), | |
426 | mac->dad_count, listcount(mac->neigh_list)); | |
427 | } | |
b2998086 PR |
428 | |
429 | /* Remove all IPs as duplicate associcated with this MAC */ | |
430 | for (ALL_LIST_ELEMENTS_RO(mac->neigh_list, node, nbr)) { | |
431 | if (CHECK_FLAG(nbr->flags, ZEBRA_NEIGH_DUPLICATE)) { | |
432 | if (CHECK_FLAG(nbr->flags, ZEBRA_NEIGH_LOCAL)) | |
433 | ZEBRA_NEIGH_SET_INACTIVE(nbr); | |
434 | else if (CHECK_FLAG(nbr->flags, ZEBRA_NEIGH_REMOTE)) | |
435 | zebra_evpn_rem_neigh_install( | |
436 | zevpn, nbr, false /*was_static*/); | |
437 | } | |
24268cd0 | 438 | |
24268cd0 PR |
439 | UNSET_FLAG(nbr->flags, ZEBRA_NEIGH_DUPLICATE); |
440 | nbr->dad_count = 0; | |
441 | nbr->detect_start_time.tv_sec = 0; | |
b2998086 PR |
442 | nbr->dad_dup_detect_time = 0; |
443 | } | |
444 | ||
445 | UNSET_FLAG(mac->flags, ZEBRA_MAC_DUPLICATE); | |
446 | mac->dad_count = 0; | |
447 | mac->detect_start_time.tv_sec = 0; | |
448 | mac->detect_start_time.tv_usec = 0; | |
449 | mac->dad_dup_detect_time = 0; | |
450 | mac->dad_mac_auto_recovery_timer = NULL; | |
451 | ||
452 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL)) { | |
453 | /* Inform to BGP */ | |
454 | if (zebra_evpn_mac_send_add_to_client(zevpn->vni, &mac->macaddr, | |
455 | mac->flags, mac->loc_seq, | |
456 | mac->es)) | |
cc9f21da | 457 | return; |
b2998086 PR |
458 | |
459 | /* Process all neighbors associated with this MAC. */ | |
460 | zebra_evpn_process_neigh_on_local_mac_change(zevpn, mac, 0, | |
461 | 0 /*es_change*/); | |
462 | ||
463 | } else if (CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE)) { | |
464 | zebra_evpn_process_neigh_on_remote_mac_add(zevpn, mac); | |
465 | ||
466 | /* Install the entry. */ | |
467 | zebra_evpn_rem_mac_install(zevpn, mac, false /* was_static */); | |
24268cd0 | 468 | } |
24268cd0 PR |
469 | } |
470 | ||
d9d3455e | 471 | static void zebra_evpn_dup_addr_detect_for_mac(struct zebra_vrf *zvrf, |
3198b2b3 | 472 | struct zebra_mac *mac, |
d9d3455e PR |
473 | struct in_addr vtep_ip, |
474 | bool do_dad, bool *is_dup_detect, | |
475 | bool is_local) | |
24268cd0 | 476 | { |
72de4110 | 477 | struct zebra_neigh *nbr; |
24268cd0 PR |
478 | struct listnode *node = NULL; |
479 | struct timeval elapsed = {0, 0}; | |
24268cd0 PR |
480 | bool reset_params = false; |
481 | ||
b2ee2b71 | 482 | if (!(zebra_evpn_do_dup_addr_detect(zvrf) && do_dad)) |
24268cd0 PR |
483 | return; |
484 | ||
485 | /* MAC is detected as duplicate, | |
486 | * Local MAC event -> hold on advertising to BGP. | |
487 | * Remote MAC event -> hold on installing it. | |
488 | */ | |
489 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_DUPLICATE)) { | |
b16e8004 DS |
490 | if (IS_ZEBRA_DEBUG_VXLAN) { |
491 | char mac_buf[MAC_BUF_SIZE]; | |
492 | ||
24268cd0 | 493 | zlog_debug( |
ef7b8be4 DL |
494 | "%s: duplicate addr MAC %pEA flags %sskip update to client, learn count %u recover time %u", |
495 | __func__, &mac->macaddr, | |
b16e8004 DS |
496 | zebra_evpn_zebra_mac_flag_dump(mac, mac_buf, |
497 | sizeof(mac_buf)), | |
498 | mac->dad_count, zvrf->dad_freeze_time); | |
499 | } | |
24268cd0 PR |
500 | /* For duplicate MAC do not update |
501 | * client but update neigh due to | |
502 | * this MAC update. | |
503 | */ | |
504 | if (zvrf->dad_freeze) | |
505 | *is_dup_detect = true; | |
506 | ||
507 | return; | |
508 | } | |
509 | ||
510 | /* Check if detection time (M-secs) expired. | |
511 | * Reset learn count and detection start time. | |
512 | */ | |
513 | monotime_since(&mac->detect_start_time, &elapsed); | |
514 | reset_params = (elapsed.tv_sec > zvrf->dad_time); | |
515 | if (is_local && !reset_params) { | |
516 | /* RFC-7432: A PE/VTEP that detects a MAC mobility | |
517 | * event via LOCAL learning starts an M-second timer. | |
518 | * | |
519 | * NOTE: This is the START of the probe with count is | |
520 | * 0 during LOCAL learn event. | |
521 | * (mac->dad_count == 0 || elapsed.tv_sec >= zvrf->dad_time) | |
522 | */ | |
523 | reset_params = !mac->dad_count; | |
524 | } | |
525 | ||
526 | if (reset_params) { | |
b16e8004 DS |
527 | if (IS_ZEBRA_DEBUG_VXLAN) { |
528 | char mac_buf[MAC_BUF_SIZE]; | |
529 | ||
24268cd0 | 530 | zlog_debug( |
ef7b8be4 DL |
531 | "%s: duplicate addr MAC %pEA flags %sdetection time passed, reset learn count %u", |
532 | __func__, &mac->macaddr, | |
b16e8004 DS |
533 | zebra_evpn_zebra_mac_flag_dump(mac, mac_buf, |
534 | sizeof(mac_buf)), | |
535 | mac->dad_count); | |
536 | } | |
24268cd0 PR |
537 | |
538 | mac->dad_count = 0; | |
539 | /* Start dup. addr detection (DAD) start time, | |
540 | * ONLY during LOCAL learn. | |
541 | */ | |
542 | if (is_local) | |
543 | monotime(&mac->detect_start_time); | |
544 | ||
545 | } else if (!is_local) { | |
546 | /* For REMOTE MAC, increment detection count | |
547 | * ONLY while in probe window, once window passed, | |
548 | * next local learn event should trigger DAD. | |
549 | */ | |
550 | mac->dad_count++; | |
551 | } | |
552 | ||
553 | /* For LOCAL MAC learn event, once count is reset above via either | |
554 | * initial/start detection time or passed the probe time, the count | |
555 | * needs to be incremented. | |
556 | */ | |
557 | if (is_local) | |
558 | mac->dad_count++; | |
559 | ||
560 | if (mac->dad_count >= zvrf->dad_max_moves) { | |
561 | flog_warn(EC_ZEBRA_DUP_MAC_DETECTED, | |
ef7b8be4 DL |
562 | "VNI %u: MAC %pEA detected as duplicate during %s VTEP %pI4", |
563 | mac->zevpn->vni, &mac->macaddr, | |
24268cd0 | 564 | is_local ? "local update, last" : |
9bcef951 | 565 | "remote update, from", &vtep_ip); |
24268cd0 PR |
566 | |
567 | SET_FLAG(mac->flags, ZEBRA_MAC_DUPLICATE); | |
568 | ||
569 | /* Capture Duplicate detection time */ | |
570 | mac->dad_dup_detect_time = monotime(NULL); | |
571 | ||
572 | /* Mark all IPs/Neighs as duplicate | |
573 | * associcated with this MAC | |
574 | */ | |
575 | for (ALL_LIST_ELEMENTS_RO(mac->neigh_list, node, nbr)) { | |
576 | ||
577 | /* Ony Mark IPs which are Local */ | |
578 | if (!CHECK_FLAG(nbr->flags, ZEBRA_NEIGH_LOCAL)) | |
579 | continue; | |
580 | ||
581 | SET_FLAG(nbr->flags, ZEBRA_NEIGH_DUPLICATE); | |
582 | ||
583 | nbr->dad_dup_detect_time = monotime(NULL); | |
584 | ||
585 | flog_warn(EC_ZEBRA_DUP_IP_INHERIT_DETECTED, | |
ef7b8be4 DL |
586 | "VNI %u: MAC %pEA IP %pIA detected as duplicate during %s update, inherit duplicate from MAC", |
587 | mac->zevpn->vni, &mac->macaddr, &nbr->ip, | |
24268cd0 PR |
588 | is_local ? "local" : "remote"); |
589 | } | |
590 | ||
591 | /* Start auto recovery timer for this MAC */ | |
592 | THREAD_OFF(mac->dad_mac_auto_recovery_timer); | |
593 | if (zvrf->dad_freeze && zvrf->dad_freeze_time) { | |
b16e8004 DS |
594 | if (IS_ZEBRA_DEBUG_VXLAN) { |
595 | char mac_buf[MAC_BUF_SIZE]; | |
596 | ||
24268cd0 | 597 | zlog_debug( |
ef7b8be4 DL |
598 | "%s: duplicate addr MAC %pEA flags %sauto recovery time %u start", |
599 | __func__, &mac->macaddr, | |
b16e8004 DS |
600 | zebra_evpn_zebra_mac_flag_dump( |
601 | mac, mac_buf, sizeof(mac_buf)), | |
602 | zvrf->dad_freeze_time); | |
603 | } | |
24268cd0 PR |
604 | |
605 | thread_add_timer(zrouter.master, | |
b2998086 | 606 | zebra_evpn_dad_mac_auto_recovery_exp, |
24268cd0 PR |
607 | mac, zvrf->dad_freeze_time, |
608 | &mac->dad_mac_auto_recovery_timer); | |
609 | } | |
610 | ||
611 | /* In case of local update, do not inform to client (BGPd), | |
612 | * upd_neigh for neigh sequence change. | |
613 | */ | |
614 | if (zvrf->dad_freeze) | |
615 | *is_dup_detect = true; | |
616 | } | |
617 | } | |
618 | ||
b2998086 PR |
619 | /* |
620 | * Print a specific MAC entry. | |
621 | */ | |
3198b2b3 | 622 | void zebra_evpn_print_mac(struct zebra_mac *mac, void *ctxt, json_object *json) |
24268cd0 | 623 | { |
b2998086 | 624 | struct vty *vty; |
72de4110 | 625 | struct zebra_neigh *n = NULL; |
b2998086 PR |
626 | struct listnode *node = NULL; |
627 | char buf1[ETHER_ADDR_STRLEN]; | |
628 | char buf2[INET6_ADDRSTRLEN]; | |
629 | struct zebra_vrf *zvrf; | |
630 | struct timeval detect_start_time = {0, 0}; | |
631 | char timebuf[MONOTIME_STRLEN]; | |
632 | char thread_buf[THREAD_TIMER_STRLEN]; | |
f1dbb1c7 DS |
633 | time_t uptime; |
634 | char up_str[MONOTIME_STRLEN]; | |
24268cd0 | 635 | |
b2998086 | 636 | zvrf = zebra_vrf_get_evpn(); |
b2998086 PR |
637 | vty = (struct vty *)ctxt; |
638 | prefix_mac2str(&mac->macaddr, buf1, sizeof(buf1)); | |
24268cd0 | 639 | |
f1dbb1c7 DS |
640 | uptime = monotime(NULL); |
641 | uptime -= mac->uptime; | |
642 | ||
643 | frrtime_to_interval(uptime, up_str, sizeof(up_str)); | |
644 | ||
b2998086 PR |
645 | if (json) { |
646 | json_object *json_mac = json_object_new_object(); | |
24268cd0 | 647 | |
b2998086 PR |
648 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL)) { |
649 | struct interface *ifp; | |
650 | vlanid_t vid; | |
24268cd0 | 651 | |
b2998086 PR |
652 | zebra_evpn_mac_get_access_info(mac, &ifp, &vid); |
653 | json_object_string_add(json_mac, "type", "local"); | |
654 | if (ifp) { | |
655 | json_object_string_add(json_mac, "intf", | |
656 | ifp->name); | |
657 | json_object_int_add(json_mac, "ifindex", | |
658 | ifp->ifindex); | |
659 | } | |
660 | if (vid) | |
661 | json_object_int_add(json_mac, "vlan", vid); | |
662 | } else if (CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE)) { | |
663 | json_object_string_add(json_mac, "type", "remote"); | |
283ef1b0 PJD |
664 | if (mac->es) |
665 | json_object_string_add(json_mac, "remoteEs", | |
666 | mac->es->esi_str); | |
667 | else | |
668 | json_object_string_addf( | |
669 | json_mac, "remoteVtep", "%pI4", | |
670 | &mac->fwd_info.r_vtep_ip); | |
b2998086 PR |
671 | } else if (CHECK_FLAG(mac->flags, ZEBRA_MAC_AUTO)) |
672 | json_object_string_add(json_mac, "type", "auto"); | |
24268cd0 | 673 | |
b2998086 PR |
674 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_STICKY)) |
675 | json_object_boolean_true_add(json_mac, "stickyMac"); | |
24268cd0 | 676 | |
243b74ed AK |
677 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_SVI)) |
678 | json_object_boolean_true_add(json_mac, "sviMac"); | |
679 | ||
b2998086 PR |
680 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_DEF_GW)) |
681 | json_object_boolean_true_add(json_mac, | |
682 | "defaultGateway"); | |
24268cd0 | 683 | |
b2998086 PR |
684 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE_DEF_GW)) |
685 | json_object_boolean_true_add(json_mac, | |
686 | "remoteGatewayMac"); | |
24268cd0 | 687 | |
f1dbb1c7 | 688 | json_object_string_add(json_mac, "uptime", up_str); |
b2998086 PR |
689 | json_object_int_add(json_mac, "localSequence", mac->loc_seq); |
690 | json_object_int_add(json_mac, "remoteSequence", mac->rem_seq); | |
24268cd0 | 691 | |
b2998086 PR |
692 | json_object_int_add(json_mac, "detectionCount", mac->dad_count); |
693 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_DUPLICATE)) | |
694 | json_object_boolean_true_add(json_mac, "isDuplicate"); | |
695 | else | |
696 | json_object_boolean_false_add(json_mac, "isDuplicate"); | |
24268cd0 | 697 | |
b2998086 PR |
698 | json_object_int_add(json_mac, "syncNeighCount", |
699 | mac->sync_neigh_cnt); | |
700 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL_INACTIVE)) | |
701 | json_object_boolean_true_add(json_mac, "localInactive"); | |
702 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_ES_PEER_PROXY)) | |
703 | json_object_boolean_true_add(json_mac, "peerProxy"); | |
704 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_ES_PEER_ACTIVE)) | |
705 | json_object_boolean_true_add(json_mac, "peerActive"); | |
706 | if (mac->hold_timer) | |
707 | json_object_string_add( | |
708 | json_mac, "peerActiveHold", | |
709 | thread_timer_to_hhmmss(thread_buf, | |
710 | sizeof(thread_buf), | |
711 | mac->hold_timer)); | |
712 | if (mac->es) | |
713 | json_object_string_add(json_mac, "esi", | |
714 | mac->es->esi_str); | |
715 | /* print all the associated neigh */ | |
716 | if (!listcount(mac->neigh_list)) | |
717 | json_object_string_add(json_mac, "neighbors", "none"); | |
718 | else { | |
719 | json_object *json_active_nbrs = json_object_new_array(); | |
720 | json_object *json_inactive_nbrs = | |
721 | json_object_new_array(); | |
722 | json_object *json_nbrs = json_object_new_object(); | |
24268cd0 | 723 | |
b2998086 PR |
724 | for (ALL_LIST_ELEMENTS_RO(mac->neigh_list, node, n)) { |
725 | if (IS_ZEBRA_NEIGH_ACTIVE(n)) | |
726 | json_object_array_add( | |
727 | json_active_nbrs, | |
728 | json_object_new_string( | |
729 | ipaddr2str( | |
730 | &n->ip, buf2, | |
731 | sizeof(buf2)))); | |
732 | else | |
733 | json_object_array_add( | |
734 | json_inactive_nbrs, | |
735 | json_object_new_string( | |
736 | ipaddr2str( | |
737 | &n->ip, buf2, | |
738 | sizeof(buf2)))); | |
739 | } | |
24268cd0 | 740 | |
b2998086 PR |
741 | json_object_object_add(json_nbrs, "active", |
742 | json_active_nbrs); | |
743 | json_object_object_add(json_nbrs, "inactive", | |
744 | json_inactive_nbrs); | |
745 | json_object_object_add(json_mac, "neighbors", | |
746 | json_nbrs); | |
24268cd0 | 747 | } |
24268cd0 | 748 | |
b2998086 PR |
749 | json_object_object_add(json, buf1, json_mac); |
750 | } else { | |
751 | vty_out(vty, "MAC: %s\n", buf1); | |
24268cd0 | 752 | |
b2998086 PR |
753 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL)) { |
754 | struct interface *ifp; | |
755 | vlanid_t vid; | |
24268cd0 | 756 | |
b2998086 | 757 | zebra_evpn_mac_get_access_info(mac, &ifp, &vid); |
24268cd0 | 758 | |
b2998086 PR |
759 | if (mac->es) |
760 | vty_out(vty, " ESI: %s\n", mac->es->esi_str); | |
24268cd0 | 761 | |
b2998086 PR |
762 | if (ifp) |
763 | vty_out(vty, " Intf: %s(%u)", ifp->name, | |
764 | ifp->ifindex); | |
765 | else | |
766 | vty_out(vty, " Intf: -"); | |
767 | vty_out(vty, " VLAN: %u", vid); | |
768 | } else if (CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE)) { | |
769 | if (mac->es) | |
770 | vty_out(vty, " Remote ES: %s", | |
771 | mac->es->esi_str); | |
772 | else | |
9bcef951 MS |
773 | vty_out(vty, " Remote VTEP: %pI4", |
774 | &mac->fwd_info.r_vtep_ip); | |
b2998086 PR |
775 | } else if (CHECK_FLAG(mac->flags, ZEBRA_MAC_AUTO)) { |
776 | vty_out(vty, " Auto Mac "); | |
777 | } | |
24268cd0 | 778 | |
b2998086 PR |
779 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_STICKY)) |
780 | vty_out(vty, " Sticky Mac "); | |
24268cd0 | 781 | |
243b74ed AK |
782 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_SVI)) |
783 | vty_out(vty, " SVI-Mac "); | |
784 | ||
b2998086 PR |
785 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_DEF_GW)) |
786 | vty_out(vty, " Default-gateway Mac "); | |
787 | ||
788 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE_DEF_GW)) | |
789 | vty_out(vty, " Remote-gateway Mac "); | |
790 | ||
791 | vty_out(vty, "\n"); | |
792 | vty_out(vty, " Sync-info: neigh#: %u", mac->sync_neigh_cnt); | |
793 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL_INACTIVE)) | |
24268cd0 | 794 | vty_out(vty, " local-inactive"); |
b2998086 | 795 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_ES_PEER_PROXY)) |
24268cd0 | 796 | vty_out(vty, " peer-proxy"); |
b2998086 | 797 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_ES_PEER_ACTIVE)) |
24268cd0 | 798 | vty_out(vty, " peer-active"); |
b2998086 | 799 | if (mac->hold_timer) |
24268cd0 | 800 | vty_out(vty, " (ht: %s)", |
b2998086 PR |
801 | thread_timer_to_hhmmss(thread_buf, |
802 | sizeof(thread_buf), | |
803 | mac->hold_timer)); | |
804 | vty_out(vty, "\n"); | |
f1dbb1c7 | 805 | vty_out(vty, " Local Seq: %u Remote Seq: %u\n", mac->loc_seq, |
b2998086 | 806 | mac->rem_seq); |
f1dbb1c7 | 807 | vty_out(vty, " Uptime: %s\n", up_str); |
24268cd0 | 808 | |
b2998086 | 809 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_DUPLICATE)) { |
24268cd0 | 810 | vty_out(vty, " Duplicate, detected at %s", |
b2998086 | 811 | time_to_string(mac->dad_dup_detect_time, |
24268cd0 | 812 | timebuf)); |
b2998086 PR |
813 | } else if (mac->dad_count) { |
814 | monotime_since(&mac->detect_start_time, | |
24268cd0 PR |
815 | &detect_start_time); |
816 | if (detect_start_time.tv_sec <= zvrf->dad_time) { | |
b2998086 | 817 | time_to_string(mac->detect_start_time.tv_sec, |
24268cd0 PR |
818 | timebuf); |
819 | vty_out(vty, | |
820 | " Duplicate detection started at %s, detection count %u\n", | |
b2998086 | 821 | timebuf, mac->dad_count); |
24268cd0 PR |
822 | } |
823 | } | |
24268cd0 | 824 | |
b2998086 PR |
825 | /* print all the associated neigh */ |
826 | vty_out(vty, " Neighbors:\n"); | |
827 | if (!listcount(mac->neigh_list)) | |
828 | vty_out(vty, " No Neighbors\n"); | |
829 | else { | |
830 | for (ALL_LIST_ELEMENTS_RO(mac->neigh_list, node, n)) { | |
831 | vty_out(vty, " %s %s\n", | |
832 | ipaddr2str(&n->ip, buf2, sizeof(buf2)), | |
833 | (IS_ZEBRA_NEIGH_ACTIVE(n) | |
834 | ? "Active" | |
835 | : "Inactive")); | |
836 | } | |
837 | } | |
24268cd0 | 838 | |
b2998086 | 839 | vty_out(vty, "\n"); |
24268cd0 PR |
840 | } |
841 | } | |
842 | ||
3198b2b3 | 843 | static char *zebra_evpn_print_mac_flags(struct zebra_mac *mac, char *flags_buf, |
700cae76 | 844 | size_t flags_buf_sz) |
24268cd0 | 845 | { |
b2998086 | 846 | snprintf(flags_buf, flags_buf_sz, "%s%s%s%s", |
00a7710c AK |
847 | mac->sync_neigh_cnt ? "N" : "", |
848 | (mac->flags & ZEBRA_MAC_ES_PEER_ACTIVE) ? "P" : "", | |
849 | (mac->flags & ZEBRA_MAC_ES_PEER_PROXY) ? "X" : "", | |
850 | (mac->flags & ZEBRA_MAC_LOCAL_INACTIVE) ? "I" : ""); | |
24268cd0 PR |
851 | |
852 | return flags_buf; | |
853 | } | |
854 | ||
855 | /* | |
b2998086 | 856 | * Print MAC hash entry - called for display of all MACs. |
24268cd0 | 857 | */ |
b2998086 | 858 | void zebra_evpn_print_mac_hash(struct hash_bucket *bucket, void *ctxt) |
24268cd0 PR |
859 | { |
860 | struct vty *vty; | |
b2998086 | 861 | json_object *json_mac_hdr = NULL, *json_mac = NULL; |
3198b2b3 | 862 | struct zebra_mac *mac; |
24268cd0 | 863 | char buf1[ETHER_ADDR_STRLEN]; |
9bcef951 | 864 | char addr_buf[PREFIX_STRLEN]; |
b2998086 | 865 | struct mac_walk_ctx *wctx = ctxt; |
24268cd0 PR |
866 | char flags_buf[6]; |
867 | ||
868 | vty = wctx->vty; | |
b2998086 | 869 | json_mac_hdr = wctx->json; |
3198b2b3 | 870 | mac = (struct zebra_mac *)bucket->data; |
b2998086 PR |
871 | |
872 | prefix_mac2str(&mac->macaddr, buf1, sizeof(buf1)); | |
873 | ||
874 | if (json_mac_hdr) | |
875 | json_mac = json_object_new_object(); | |
24268cd0 | 876 | |
b2998086 PR |
877 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL)) { |
878 | struct interface *ifp; | |
879 | vlanid_t vid; | |
24268cd0 | 880 | |
b2998086 | 881 | if (wctx->flags & SHOW_REMOTE_MAC_FROM_VTEP) |
24268cd0 PR |
882 | return; |
883 | ||
b2998086 PR |
884 | zebra_evpn_mac_get_access_info(mac, &ifp, &vid); |
885 | if (json_mac_hdr == NULL) { | |
886 | vty_out(vty, "%-17s %-6s %-5s %-30s", buf1, "local", | |
887 | zebra_evpn_print_mac_flags(mac, flags_buf, | |
888 | sizeof(flags_buf)), | |
889 | ifp ? ifp->name : "-"); | |
890 | } else { | |
891 | json_object_string_add(json_mac, "type", "local"); | |
892 | if (ifp) | |
893 | json_object_string_add(json_mac, "intf", | |
894 | ifp->name); | |
895 | } | |
896 | if (vid) { | |
897 | if (json_mac_hdr == NULL) | |
898 | vty_out(vty, " %-5u", vid); | |
899 | else | |
900 | json_object_int_add(json_mac, "vlan", vid); | |
901 | } else /* No vid? fill out the space */ | |
902 | if (json_mac_hdr == NULL) | |
903 | vty_out(vty, " %-5s", ""); | |
904 | if (json_mac_hdr == NULL) { | |
905 | vty_out(vty, " %u/%u", mac->loc_seq, mac->rem_seq); | |
906 | vty_out(vty, "\n"); | |
24268cd0 | 907 | } else { |
b2998086 PR |
908 | json_object_int_add(json_mac, "localSequence", |
909 | mac->loc_seq); | |
910 | json_object_int_add(json_mac, "remoteSequence", | |
911 | mac->rem_seq); | |
912 | json_object_int_add(json_mac, "detectionCount", | |
913 | mac->dad_count); | |
914 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_DUPLICATE)) | |
915 | json_object_boolean_true_add(json_mac, | |
24268cd0 PR |
916 | "isDuplicate"); |
917 | else | |
b2998086 | 918 | json_object_boolean_false_add(json_mac, |
24268cd0 | 919 | "isDuplicate"); |
b2998086 | 920 | json_object_object_add(json_mac_hdr, buf1, json_mac); |
24268cd0 | 921 | } |
b2998086 | 922 | |
24268cd0 | 923 | wctx->count++; |
b2998086 PR |
924 | |
925 | } else if (CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE)) { | |
926 | ||
927 | if ((wctx->flags & SHOW_REMOTE_MAC_FROM_VTEP) | |
928 | && !IPV4_ADDR_SAME(&mac->fwd_info.r_vtep_ip, | |
929 | &wctx->r_vtep_ip)) | |
24268cd0 PR |
930 | return; |
931 | ||
b2998086 PR |
932 | if (json_mac_hdr == NULL) { |
933 | if ((wctx->flags & SHOW_REMOTE_MAC_FROM_VTEP) | |
934 | && (wctx->count == 0)) { | |
935 | vty_out(vty, "\nVNI %u\n\n", wctx->zevpn->vni); | |
936 | vty_out(vty, "%-17s %-6s %-5s%-30s %-5s %s\n", | |
937 | "MAC", "Type", "Flags", | |
938 | "Intf/Remote ES/VTEP", "VLAN", | |
939 | "Seq #'s"); | |
24268cd0 | 940 | } |
9bcef951 MS |
941 | if (mac->es == NULL) |
942 | inet_ntop(AF_INET, &mac->fwd_info.r_vtep_ip, | |
943 | addr_buf, sizeof(addr_buf)); | |
944 | ||
b2998086 PR |
945 | vty_out(vty, "%-17s %-6s %-5s %-30s %-5s %u/%u\n", buf1, |
946 | "remote", | |
947 | zebra_evpn_print_mac_flags(mac, flags_buf, | |
9bcef951 MS |
948 | sizeof(flags_buf)), |
949 | mac->es ? mac->es->esi_str : addr_buf, | |
b2998086 PR |
950 | "", mac->loc_seq, mac->rem_seq); |
951 | } else { | |
952 | json_object_string_add(json_mac, "type", "remote"); | |
283ef1b0 PJD |
953 | if (mac->es) |
954 | json_object_string_add(json_mac, "remoteEs", | |
955 | mac->es->esi_str); | |
956 | else | |
957 | json_object_string_addf( | |
958 | json_mac, "remoteVtep", "%pI4", | |
959 | &mac->fwd_info.r_vtep_ip); | |
b2998086 PR |
960 | json_object_object_add(json_mac_hdr, buf1, json_mac); |
961 | json_object_int_add(json_mac, "localSequence", | |
962 | mac->loc_seq); | |
963 | json_object_int_add(json_mac, "remoteSequence", | |
964 | mac->rem_seq); | |
965 | json_object_int_add(json_mac, "detectionCount", | |
966 | mac->dad_count); | |
967 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_DUPLICATE)) | |
968 | json_object_boolean_true_add(json_mac, | |
969 | "isDuplicate"); | |
970 | else | |
971 | json_object_boolean_false_add(json_mac, | |
972 | "isDuplicate"); | |
973 | } | |
24268cd0 | 974 | |
b2998086 PR |
975 | wctx->count++; |
976 | } | |
24268cd0 PR |
977 | } |
978 | ||
979 | /* | |
b2998086 | 980 | * Print MAC hash entry in detail - called for display of all MACs. |
24268cd0 | 981 | */ |
b2998086 | 982 | void zebra_evpn_print_mac_hash_detail(struct hash_bucket *bucket, void *ctxt) |
24268cd0 | 983 | { |
b2998086 PR |
984 | struct vty *vty; |
985 | json_object *json_mac_hdr = NULL; | |
3198b2b3 | 986 | struct zebra_mac *mac; |
b2998086 PR |
987 | struct mac_walk_ctx *wctx = ctxt; |
988 | char buf1[ETHER_ADDR_STRLEN]; | |
24268cd0 | 989 | |
b2998086 PR |
990 | vty = wctx->vty; |
991 | json_mac_hdr = wctx->json; | |
3198b2b3 | 992 | mac = (struct zebra_mac *)bucket->data; |
b2998086 | 993 | if (!mac) |
24268cd0 PR |
994 | return; |
995 | ||
b2998086 PR |
996 | wctx->count++; |
997 | prefix_mac2str(&mac->macaddr, buf1, sizeof(buf1)); | |
24268cd0 | 998 | |
b2998086 | 999 | zebra_evpn_print_mac(mac, vty, json_mac_hdr); |
24268cd0 PR |
1000 | } |
1001 | ||
1002 | /* | |
b2998086 | 1003 | * Inform BGP about local MACIP. |
24268cd0 | 1004 | */ |
7f7e49d1 MS |
1005 | int zebra_evpn_macip_send_msg_to_client(vni_t vni, |
1006 | const struct ethaddr *macaddr, | |
1a3bd37f | 1007 | const struct ipaddr *ip, uint8_t flags, |
b2998086 PR |
1008 | uint32_t seq, int state, |
1009 | struct zebra_evpn_es *es, uint16_t cmd) | |
24268cd0 | 1010 | { |
b2998086 PR |
1011 | int ipa_len; |
1012 | struct zserv *client = NULL; | |
1013 | struct stream *s = NULL; | |
1014 | esi_t *esi = es ? &es->esi : zero_esi; | |
24268cd0 | 1015 | |
b2998086 PR |
1016 | client = zserv_find_client(ZEBRA_ROUTE_BGP, 0); |
1017 | /* BGP may not be running. */ | |
1018 | if (!client) | |
1019 | return 0; | |
24268cd0 | 1020 | |
b2998086 | 1021 | s = stream_new(ZEBRA_MAX_PACKET_SIZ); |
24268cd0 | 1022 | |
b2998086 PR |
1023 | zclient_create_header(s, cmd, zebra_vrf_get_evpn_id()); |
1024 | stream_putl(s, vni); | |
1025 | stream_put(s, macaddr->octet, ETH_ALEN); | |
1026 | if (ip) { | |
1027 | ipa_len = 0; | |
1028 | if (IS_IPADDR_V4(ip)) | |
1029 | ipa_len = IPV4_MAX_BYTELEN; | |
1030 | else if (IS_IPADDR_V6(ip)) | |
1031 | ipa_len = IPV6_MAX_BYTELEN; | |
24268cd0 | 1032 | |
b2998086 PR |
1033 | stream_putl(s, ipa_len); /* IP address length */ |
1034 | if (ipa_len) | |
1035 | stream_put(s, &ip->ip.addr, ipa_len); /* IP address */ | |
1036 | } else | |
1037 | stream_putl(s, 0); /* Just MAC. */ | |
24268cd0 | 1038 | |
b2998086 PR |
1039 | if (cmd == ZEBRA_MACIP_ADD) { |
1040 | stream_putc(s, flags); /* sticky mac/gateway mac */ | |
1041 | stream_putl(s, seq); /* sequence number */ | |
1042 | stream_put(s, esi, sizeof(esi_t)); | |
24268cd0 | 1043 | } else { |
b2998086 PR |
1044 | stream_putl(s, state); /* state - active/inactive */ |
1045 | } | |
24268cd0 | 1046 | |
24268cd0 | 1047 | |
b2998086 PR |
1048 | /* Write packet size. */ |
1049 | stream_putw_at(s, 0, stream_get_endp(s)); | |
24268cd0 | 1050 | |
bf902d4c DS |
1051 | if (IS_ZEBRA_DEBUG_VXLAN) { |
1052 | char flag_buf[MACIP_BUF_SIZE]; | |
1053 | ||
b2998086 | 1054 | zlog_debug( |
ef7b8be4 | 1055 | "Send MACIP %s f %s MAC %pEA IP %pIA seq %u L2-VNI %u ESI %s to %s", |
bf902d4c DS |
1056 | (cmd == ZEBRA_MACIP_ADD) ? "Add" : "Del", |
1057 | zclient_evpn_dump_macip_flags(flags, flag_buf, | |
1058 | sizeof(flag_buf)), | |
ef7b8be4 | 1059 | macaddr, ip, seq, vni, |
b2998086 PR |
1060 | es ? es->esi_str : "-", |
1061 | zebra_route_string(client->proto)); | |
bf902d4c | 1062 | } |
24268cd0 | 1063 | |
b2998086 PR |
1064 | if (cmd == ZEBRA_MACIP_ADD) |
1065 | client->macipadd_cnt++; | |
1066 | else | |
1067 | client->macipdel_cnt++; | |
24268cd0 | 1068 | |
b2998086 PR |
1069 | return zserv_send_message(client, s); |
1070 | } | |
24268cd0 | 1071 | |
b2998086 PR |
1072 | static unsigned int mac_hash_keymake(const void *p) |
1073 | { | |
3198b2b3 | 1074 | const struct zebra_mac *pmac = p; |
b2998086 | 1075 | const void *pnt = (void *)pmac->macaddr.octet; |
24268cd0 | 1076 | |
b2998086 | 1077 | return jhash(pnt, ETH_ALEN, 0xa5a5a55a); |
24268cd0 PR |
1078 | } |
1079 | ||
1080 | /* | |
b2998086 | 1081 | * Compare two MAC addresses. |
24268cd0 | 1082 | */ |
b2998086 | 1083 | static bool mac_cmp(const void *p1, const void *p2) |
24268cd0 | 1084 | { |
3198b2b3 DS |
1085 | const struct zebra_mac *pmac1 = p1; |
1086 | const struct zebra_mac *pmac2 = p2; | |
24268cd0 | 1087 | |
b2998086 PR |
1088 | if (pmac1 == NULL && pmac2 == NULL) |
1089 | return true; | |
24268cd0 | 1090 | |
b2998086 PR |
1091 | if (pmac1 == NULL || pmac2 == NULL) |
1092 | return false; | |
24268cd0 | 1093 | |
b2998086 PR |
1094 | return (memcmp(pmac1->macaddr.octet, pmac2->macaddr.octet, ETH_ALEN) |
1095 | == 0); | |
1096 | } | |
24268cd0 | 1097 | |
b2998086 PR |
1098 | /* |
1099 | * Callback to allocate MAC hash entry. | |
1100 | */ | |
1101 | static void *zebra_evpn_mac_alloc(void *p) | |
1102 | { | |
3198b2b3 DS |
1103 | const struct zebra_mac *tmp_mac = p; |
1104 | struct zebra_mac *mac; | |
24268cd0 | 1105 | |
3198b2b3 | 1106 | mac = XCALLOC(MTYPE_MAC, sizeof(struct zebra_mac)); |
b2998086 | 1107 | *mac = *tmp_mac; |
24268cd0 | 1108 | |
b2998086 PR |
1109 | return ((void *)mac); |
1110 | } | |
24268cd0 | 1111 | |
b2998086 PR |
1112 | /* |
1113 | * Add MAC entry. | |
1114 | */ | |
3198b2b3 DS |
1115 | struct zebra_mac *zebra_evpn_mac_add(struct zebra_evpn *zevpn, |
1116 | const struct ethaddr *macaddr) | |
b2998086 | 1117 | { |
3198b2b3 DS |
1118 | struct zebra_mac tmp_mac; |
1119 | struct zebra_mac *mac = NULL; | |
24268cd0 | 1120 | |
6006b807 | 1121 | memset(&tmp_mac, 0, sizeof(tmp_mac)); |
b2998086 PR |
1122 | memcpy(&tmp_mac.macaddr, macaddr, ETH_ALEN); |
1123 | mac = hash_get(zevpn->mac_table, &tmp_mac, zebra_evpn_mac_alloc); | |
24268cd0 | 1124 | |
b2998086 PR |
1125 | mac->zevpn = zevpn; |
1126 | mac->dad_mac_auto_recovery_timer = NULL; | |
24268cd0 | 1127 | |
b2998086 PR |
1128 | mac->neigh_list = list_new(); |
1129 | mac->neigh_list->cmp = neigh_list_cmp; | |
24268cd0 | 1130 | |
f1dbb1c7 | 1131 | mac->uptime = monotime(NULL); |
b2998086 | 1132 | if (IS_ZEBRA_DEBUG_VXLAN || IS_ZEBRA_DEBUG_EVPN_MH_MAC) { |
b16e8004 | 1133 | char mac_buf[MAC_BUF_SIZE]; |
24268cd0 | 1134 | |
ef7b8be4 DL |
1135 | zlog_debug("%s: MAC %pEA flags %s", __func__, |
1136 | &mac->macaddr, | |
b16e8004 DS |
1137 | zebra_evpn_zebra_mac_flag_dump(mac, mac_buf, |
1138 | sizeof(mac_buf))); | |
b2998086 PR |
1139 | } |
1140 | return mac; | |
24268cd0 PR |
1141 | } |
1142 | ||
1143 | /* | |
b2998086 | 1144 | * Delete MAC entry. |
24268cd0 | 1145 | */ |
3198b2b3 | 1146 | int zebra_evpn_mac_del(struct zebra_evpn *zevpn, struct zebra_mac *mac) |
24268cd0 | 1147 | { |
3198b2b3 | 1148 | struct zebra_mac *tmp_mac; |
24268cd0 | 1149 | |
b2998086 | 1150 | if (IS_ZEBRA_DEBUG_VXLAN || IS_ZEBRA_DEBUG_EVPN_MH_MAC) { |
b16e8004 | 1151 | char mac_buf[MAC_BUF_SIZE]; |
b2998086 | 1152 | |
ef7b8be4 DL |
1153 | zlog_debug("%s: MAC %pEA flags %s", __func__, |
1154 | &mac->macaddr, | |
b16e8004 DS |
1155 | zebra_evpn_zebra_mac_flag_dump(mac, mac_buf, |
1156 | sizeof(mac_buf))); | |
24268cd0 PR |
1157 | } |
1158 | ||
b2998086 PR |
1159 | /* force de-ref any ES entry linked to the MAC */ |
1160 | zebra_evpn_es_mac_deref_entry(mac); | |
24268cd0 | 1161 | |
8b07f173 AK |
1162 | /* remove links to the destination access port */ |
1163 | zebra_evpn_mac_clear_fwd_info(mac); | |
1164 | ||
b2998086 PR |
1165 | /* Cancel proxy hold timer */ |
1166 | zebra_evpn_mac_stop_hold_timer(mac); | |
24268cd0 | 1167 | |
b2998086 PR |
1168 | /* Cancel auto recovery */ |
1169 | THREAD_OFF(mac->dad_mac_auto_recovery_timer); | |
24268cd0 | 1170 | |
d5fdae8f CS |
1171 | /* If the MAC is freed before the neigh we will end up |
1172 | * with a stale pointer against the neigh. | |
1173 | * The situation can arise when a MAC is in remote state | |
1174 | * and its associated neigh is local state. | |
1175 | * zebra_evpn_cfg_cleanup() cleans up remote neighs and MACs. | |
1176 | * Instead of deleting remote MAC, if its neigh list is non-empty | |
1177 | * (associated to local neighs), mark the MAC as AUTO. | |
1178 | */ | |
1179 | if (!list_isempty(mac->neigh_list)) { | |
1180 | if (IS_ZEBRA_DEBUG_VXLAN) | |
1181 | zlog_debug( | |
1182 | "MAC %pEA (flags 0x%x vni %u) has non-empty neigh list " | |
1183 | "count %u, mark MAC as AUTO", | |
1184 | &mac->macaddr, mac->flags, zevpn->vni, | |
1185 | listcount(mac->neigh_list)); | |
1186 | ||
1187 | SET_FLAG(mac->flags, ZEBRA_MAC_AUTO); | |
1188 | return 0; | |
1189 | } | |
1190 | ||
b2998086 | 1191 | list_delete(&mac->neigh_list); |
24268cd0 | 1192 | |
b2998086 PR |
1193 | /* Free the VNI hash entry and allocated memory. */ |
1194 | tmp_mac = hash_release(zevpn->mac_table, mac); | |
1195 | XFREE(MTYPE_MAC, tmp_mac); | |
24268cd0 | 1196 | |
b2998086 PR |
1197 | return 0; |
1198 | } | |
24268cd0 | 1199 | |
852d9f97 SW |
1200 | /* |
1201 | * Add Auto MAC entry. | |
1202 | */ | |
1203 | struct zebra_mac *zebra_evpn_mac_add_auto(struct zebra_evpn *zevpn, | |
1204 | const struct ethaddr *macaddr) | |
1205 | { | |
1206 | struct zebra_mac *mac; | |
1207 | ||
1208 | mac = zebra_evpn_mac_add(zevpn, macaddr); | |
1209 | if (!mac) | |
1210 | return NULL; | |
1211 | ||
1212 | zebra_evpn_mac_clear_fwd_info(mac); | |
1213 | memset(&mac->flags, 0, sizeof(uint32_t)); | |
1214 | SET_FLAG(mac->flags, ZEBRA_MAC_AUTO); | |
1215 | ||
1216 | return mac; | |
1217 | } | |
1218 | ||
b2998086 | 1219 | static bool zebra_evpn_check_mac_del_from_db(struct mac_walk_ctx *wctx, |
3198b2b3 | 1220 | struct zebra_mac *mac) |
b2998086 PR |
1221 | { |
1222 | if ((wctx->flags & DEL_LOCAL_MAC) && (mac->flags & ZEBRA_MAC_LOCAL)) | |
1223 | return true; | |
1224 | else if ((wctx->flags & DEL_REMOTE_MAC) | |
1225 | && (mac->flags & ZEBRA_MAC_REMOTE)) | |
1226 | return true; | |
1227 | else if ((wctx->flags & DEL_REMOTE_MAC_FROM_VTEP) | |
1228 | && (mac->flags & ZEBRA_MAC_REMOTE) | |
1229 | && IPV4_ADDR_SAME(&mac->fwd_info.r_vtep_ip, &wctx->r_vtep_ip)) | |
1230 | return true; | |
1231 | else if ((wctx->flags & DEL_LOCAL_MAC) && (mac->flags & ZEBRA_MAC_AUTO) | |
1232 | && !listcount(mac->neigh_list)) { | |
1233 | if (IS_ZEBRA_DEBUG_VXLAN) { | |
b16e8004 | 1234 | char mac_buf[MAC_BUF_SIZE]; |
24268cd0 | 1235 | |
24268cd0 | 1236 | zlog_debug( |
ef7b8be4 DL |
1237 | "%s: Del MAC %pEA flags %s", __func__, |
1238 | &mac->macaddr, | |
b16e8004 DS |
1239 | zebra_evpn_zebra_mac_flag_dump( |
1240 | mac, mac_buf, sizeof(mac_buf))); | |
b2998086 PR |
1241 | } |
1242 | wctx->uninstall = 0; | |
24268cd0 | 1243 | |
b2998086 PR |
1244 | return true; |
1245 | } | |
24268cd0 | 1246 | |
b2998086 PR |
1247 | return false; |
1248 | } | |
24268cd0 | 1249 | |
b2998086 PR |
1250 | /* |
1251 | * Free MAC hash entry (callback) | |
1252 | */ | |
1253 | static void zebra_evpn_mac_del_hash_entry(struct hash_bucket *bucket, void *arg) | |
1254 | { | |
1255 | struct mac_walk_ctx *wctx = arg; | |
3198b2b3 | 1256 | struct zebra_mac *mac = bucket->data; |
24268cd0 | 1257 | |
b2998086 PR |
1258 | if (zebra_evpn_check_mac_del_from_db(wctx, mac)) { |
1259 | if (wctx->upd_client && (mac->flags & ZEBRA_MAC_LOCAL)) { | |
1260 | zebra_evpn_mac_send_del_to_client(wctx->zevpn->vni, | |
1261 | &mac->macaddr, | |
1262 | mac->flags, false); | |
1263 | } | |
1264 | if (wctx->uninstall) { | |
1265 | if (zebra_evpn_mac_is_static(mac)) | |
1266 | zebra_evpn_sync_mac_dp_install( | |
1267 | mac, false /* set_inactive */, | |
1268 | true /* force_clear_static */, | |
1269 | __func__); | |
24268cd0 | 1270 | |
b2998086 | 1271 | if (mac->flags & ZEBRA_MAC_REMOTE) |
f3722826 AK |
1272 | zebra_evpn_rem_mac_uninstall(wctx->zevpn, mac, |
1273 | false /*force*/); | |
24268cd0 | 1274 | } |
b2998086 PR |
1275 | |
1276 | zebra_evpn_mac_del(wctx->zevpn, mac); | |
24268cd0 PR |
1277 | } |
1278 | ||
24268cd0 PR |
1279 | return; |
1280 | } | |
1281 | ||
24268cd0 | 1282 | /* |
b2998086 | 1283 | * Delete all MAC entries for this EVPN. |
24268cd0 | 1284 | */ |
f6371c34 DS |
1285 | void zebra_evpn_mac_del_all(struct zebra_evpn *zevpn, int uninstall, |
1286 | int upd_client, uint32_t flags) | |
24268cd0 | 1287 | { |
b2998086 | 1288 | struct mac_walk_ctx wctx; |
24268cd0 | 1289 | |
b2998086 | 1290 | if (!zevpn->mac_table) |
24268cd0 PR |
1291 | return; |
1292 | ||
6006b807 | 1293 | memset(&wctx, 0, sizeof(wctx)); |
b2998086 PR |
1294 | wctx.zevpn = zevpn; |
1295 | wctx.uninstall = uninstall; | |
1296 | wctx.upd_client = upd_client; | |
1297 | wctx.flags = flags; | |
24268cd0 | 1298 | |
b2998086 PR |
1299 | hash_iterate(zevpn->mac_table, zebra_evpn_mac_del_hash_entry, &wctx); |
1300 | } | |
24268cd0 | 1301 | |
b2998086 PR |
1302 | /* |
1303 | * Look up MAC hash entry. | |
1304 | */ | |
3198b2b3 DS |
1305 | struct zebra_mac *zebra_evpn_mac_lookup(struct zebra_evpn *zevpn, |
1306 | const struct ethaddr *mac) | |
b2998086 | 1307 | { |
3198b2b3 DS |
1308 | struct zebra_mac tmp; |
1309 | struct zebra_mac *pmac; | |
24268cd0 | 1310 | |
b2998086 PR |
1311 | memset(&tmp, 0, sizeof(tmp)); |
1312 | memcpy(&tmp.macaddr, mac, ETH_ALEN); | |
1313 | pmac = hash_lookup(zevpn->mac_table, &tmp); | |
24268cd0 | 1314 | |
b2998086 PR |
1315 | return pmac; |
1316 | } | |
24268cd0 | 1317 | |
b2998086 PR |
1318 | /* |
1319 | * Inform BGP about local MAC addition. | |
1320 | */ | |
1a3bd37f | 1321 | int zebra_evpn_mac_send_add_to_client(vni_t vni, const struct ethaddr *macaddr, |
b2998086 PR |
1322 | uint32_t mac_flags, uint32_t seq, |
1323 | struct zebra_evpn_es *es) | |
1324 | { | |
1325 | uint8_t flags = 0; | |
24268cd0 | 1326 | |
b2998086 PR |
1327 | if (CHECK_FLAG(mac_flags, ZEBRA_MAC_LOCAL_INACTIVE)) { |
1328 | /* host reachability has not been verified locally */ | |
24268cd0 | 1329 | |
b2998086 PR |
1330 | /* if no ES peer is claiming reachability we can't advertise the |
1331 | * entry | |
1332 | */ | |
1333 | if (!CHECK_FLAG(mac_flags, ZEBRA_MAC_ES_PEER_ACTIVE)) | |
1334 | return 0; | |
24268cd0 | 1335 | |
b2998086 PR |
1336 | /* ES peers are claiming reachability; we will |
1337 | * advertise the entry but with a proxy flag | |
24268cd0 | 1338 | */ |
b2998086 PR |
1339 | SET_FLAG(flags, ZEBRA_MACIP_TYPE_PROXY_ADVERT); |
1340 | } | |
24268cd0 | 1341 | |
b2998086 PR |
1342 | if (CHECK_FLAG(mac_flags, ZEBRA_MAC_STICKY)) |
1343 | SET_FLAG(flags, ZEBRA_MACIP_TYPE_STICKY); | |
1344 | if (CHECK_FLAG(mac_flags, ZEBRA_MAC_DEF_GW)) | |
1345 | SET_FLAG(flags, ZEBRA_MACIP_TYPE_GW); | |
24268cd0 | 1346 | |
b2998086 PR |
1347 | return zebra_evpn_macip_send_msg_to_client(vni, macaddr, NULL, flags, |
1348 | seq, ZEBRA_NEIGH_ACTIVE, es, | |
1349 | ZEBRA_MACIP_ADD); | |
1350 | } | |
24268cd0 | 1351 | |
b2998086 PR |
1352 | /* |
1353 | * Inform BGP about local MAC deletion. | |
1354 | */ | |
1a3bd37f | 1355 | int zebra_evpn_mac_send_del_to_client(vni_t vni, const struct ethaddr *macaddr, |
b2998086 PR |
1356 | uint32_t flags, bool force) |
1357 | { | |
1358 | if (!force) { | |
1359 | if (CHECK_FLAG(flags, ZEBRA_MAC_LOCAL_INACTIVE) | |
1360 | && !CHECK_FLAG(flags, ZEBRA_MAC_ES_PEER_ACTIVE)) | |
1361 | /* the host was not advertised - nothing to delete */ | |
1362 | return 0; | |
24268cd0 PR |
1363 | } |
1364 | ||
b2998086 PR |
1365 | return zebra_evpn_macip_send_msg_to_client( |
1366 | vni, macaddr, NULL, 0 /* flags */, 0 /* seq */, | |
1367 | ZEBRA_NEIGH_ACTIVE, NULL, ZEBRA_MACIP_DEL); | |
24268cd0 PR |
1368 | } |
1369 | ||
1370 | /* | |
b2998086 | 1371 | * wrapper to create a MAC hash table |
24268cd0 | 1372 | */ |
b2998086 | 1373 | struct hash *zebra_mac_db_create(const char *desc) |
24268cd0 | 1374 | { |
da55bcbc | 1375 | return hash_create_size(8, mac_hash_keymake, mac_cmp, desc); |
24268cd0 PR |
1376 | } |
1377 | ||
b2998086 | 1378 | /* program sync mac flags in the dataplane */ |
3198b2b3 | 1379 | int zebra_evpn_sync_mac_dp_install(struct zebra_mac *mac, bool set_inactive, |
15400f95 | 1380 | bool force_clear_static, const char *caller) |
24268cd0 | 1381 | { |
b2998086 PR |
1382 | struct interface *ifp; |
1383 | bool sticky; | |
1384 | bool set_static; | |
f6371c34 | 1385 | struct zebra_evpn *zevpn = mac->zevpn; |
b2998086 PR |
1386 | vlanid_t vid; |
1387 | struct zebra_if *zif; | |
1388 | struct interface *br_ifp; | |
24268cd0 | 1389 | |
09de6e45 AK |
1390 | /* If the ES-EVI doesn't exist defer install. When the ES-EVI is |
1391 | * created we will attempt to install the mac entry again | |
1392 | */ | |
1393 | if (mac->es) { | |
1394 | struct zebra_evpn_es_evi *es_evi; | |
1395 | ||
1396 | es_evi = zebra_evpn_es_evi_find(mac->es, mac->zevpn); | |
1397 | if (!es_evi) { | |
1398 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC) | |
1399 | zlog_debug( | |
1400 | "%s: dp-install sync-mac vni %u mac %pEA es %s 0x%x %sskipped, no es-evi", | |
1401 | caller, zevpn->vni, &mac->macaddr, | |
1402 | mac->es ? mac->es->esi_str : "-", | |
1403 | mac->flags, | |
1404 | set_inactive ? "inactive " : ""); | |
1405 | return -1; | |
1406 | } | |
1407 | } | |
1408 | ||
b2998086 PR |
1409 | /* get the access vlan from the vxlan_device */ |
1410 | zebra_evpn_mac_get_access_info(mac, &ifp, &vid); | |
24268cd0 | 1411 | |
b2998086 | 1412 | if (!ifp) { |
b16e8004 DS |
1413 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC) { |
1414 | char mac_buf[MAC_BUF_SIZE]; | |
1415 | ||
b2998086 | 1416 | zlog_debug( |
b16e8004 | 1417 | "%s: dp-install sync-mac vni %u mac %pEA es %s %s%sskipped, no access-port", |
15400f95 | 1418 | caller, zevpn->vni, &mac->macaddr, |
b16e8004 DS |
1419 | mac->es ? mac->es->esi_str : "-", |
1420 | zebra_evpn_zebra_mac_flag_dump(mac, mac_buf, | |
1421 | sizeof(mac_buf)), | |
b2998086 | 1422 | set_inactive ? "inactive " : ""); |
b16e8004 | 1423 | } |
15400f95 | 1424 | return -1; |
b2998086 | 1425 | } |
24268cd0 | 1426 | |
b2998086 PR |
1427 | zif = ifp->info; |
1428 | br_ifp = zif->brslave_info.br_if; | |
1429 | if (!br_ifp) { | |
b16e8004 DS |
1430 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC) { |
1431 | char mac_buf[MAC_BUF_SIZE]; | |
1432 | ||
b2998086 | 1433 | zlog_debug( |
b16e8004 | 1434 | "%s: dp-install sync-mac vni %u mac %pEA es %s %s%sskipped, no br", |
15400f95 | 1435 | caller, zevpn->vni, &mac->macaddr, |
b16e8004 DS |
1436 | mac->es ? mac->es->esi_str : "-", |
1437 | zebra_evpn_zebra_mac_flag_dump(mac, mac_buf, | |
1438 | sizeof(mac_buf)), | |
b2998086 | 1439 | set_inactive ? "inactive " : ""); |
b16e8004 | 1440 | } |
15400f95 | 1441 | return -1; |
b2998086 | 1442 | } |
24268cd0 | 1443 | |
b2998086 PR |
1444 | sticky = !!CHECK_FLAG(mac->flags, ZEBRA_MAC_STICKY); |
1445 | if (force_clear_static) | |
1446 | set_static = false; | |
1447 | else | |
1448 | set_static = zebra_evpn_mac_is_static(mac); | |
24268cd0 | 1449 | |
15400f95 AK |
1450 | /* We can install a local mac that has been synced from the peer |
1451 | * over the VxLAN-overlay/network-port if fast failover is not | |
1452 | * supported and if the local ES is oper-down. | |
1453 | */ | |
1454 | if (mac->es && zebra_evpn_es_local_mac_via_network_port(mac->es)) { | |
b16e8004 DS |
1455 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC) { |
1456 | char mac_buf[MAC_BUF_SIZE]; | |
1457 | ||
15400f95 | 1458 | zlog_debug( |
b16e8004 | 1459 | "dp-%s sync-nw-mac vni %u mac %pEA es %s %s%s", |
15400f95 AK |
1460 | set_static ? "install" : "uninstall", |
1461 | zevpn->vni, &mac->macaddr, | |
b16e8004 DS |
1462 | mac->es ? mac->es->esi_str : "-", |
1463 | zebra_evpn_zebra_mac_flag_dump(mac, mac_buf, | |
1464 | sizeof(mac_buf)), | |
15400f95 | 1465 | set_inactive ? "inactive " : ""); |
b16e8004 | 1466 | } |
15400f95 AK |
1467 | if (set_static) |
1468 | /* XXX - old_static needs to be computed more | |
1469 | * accurately | |
1470 | */ | |
1471 | zebra_evpn_rem_mac_install(zevpn, mac, | |
1472 | true /* old_static */); | |
1473 | else | |
1474 | zebra_evpn_rem_mac_uninstall(zevpn, mac, | |
1475 | false /* force */); | |
1476 | ||
1477 | return 0; | |
1478 | } | |
1479 | ||
b16e8004 DS |
1480 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC) { |
1481 | char mac_buf[MAC_BUF_SIZE]; | |
1482 | ||
1483 | zlog_debug("dp-install sync-mac vni %u mac %pEA es %s %s%s%s", | |
1484 | zevpn->vni, &mac->macaddr, | |
1485 | mac->es ? mac->es->esi_str : "-", | |
1486 | zebra_evpn_zebra_mac_flag_dump(mac, mac_buf, | |
1487 | sizeof(mac_buf)), | |
1488 | set_static ? "static " : "", | |
1489 | set_inactive ? "inactive " : ""); | |
1490 | } | |
24268cd0 | 1491 | |
b2998086 PR |
1492 | dplane_local_mac_add(ifp, br_ifp, vid, &mac->macaddr, sticky, |
1493 | set_static, set_inactive); | |
15400f95 | 1494 | return 0; |
24268cd0 PR |
1495 | } |
1496 | ||
3198b2b3 DS |
1497 | void zebra_evpn_mac_send_add_del_to_client(struct zebra_mac *mac, |
1498 | bool old_bgp_ready, | |
b2998086 | 1499 | bool new_bgp_ready) |
24268cd0 | 1500 | { |
b2998086 PR |
1501 | if (new_bgp_ready) |
1502 | zebra_evpn_mac_send_add_to_client(mac->zevpn->vni, | |
1503 | &mac->macaddr, mac->flags, | |
1504 | mac->loc_seq, mac->es); | |
1505 | else if (old_bgp_ready) | |
1506 | zebra_evpn_mac_send_del_to_client(mac->zevpn->vni, | |
1507 | &mac->macaddr, mac->flags, | |
1508 | true /* force */); | |
24268cd0 PR |
1509 | } |
1510 | ||
b2998086 PR |
1511 | /* MAC hold timer is used to age out peer-active flag. |
1512 | * | |
1513 | * During this wait time we expect the dataplane component or an | |
1514 | * external neighmgr daemon to probe existing hosts to independently | |
1515 | * establish their presence on the ES. | |
1516 | */ | |
cc9f21da | 1517 | static void zebra_evpn_mac_hold_exp_cb(struct thread *t) |
24268cd0 | 1518 | { |
3198b2b3 | 1519 | struct zebra_mac *mac; |
b2998086 PR |
1520 | bool old_bgp_ready; |
1521 | bool new_bgp_ready; | |
1522 | bool old_static; | |
1523 | bool new_static; | |
24268cd0 PR |
1524 | |
1525 | mac = THREAD_ARG(t); | |
b2998086 PR |
1526 | /* the purpose of the hold timer is to age out the peer-active |
1527 | * flag | |
1528 | */ | |
1529 | if (!CHECK_FLAG(mac->flags, ZEBRA_MAC_ES_PEER_ACTIVE)) | |
cc9f21da | 1530 | return; |
24268cd0 | 1531 | |
b2998086 PR |
1532 | old_bgp_ready = zebra_evpn_mac_is_ready_for_bgp(mac->flags); |
1533 | old_static = zebra_evpn_mac_is_static(mac); | |
1534 | UNSET_FLAG(mac->flags, ZEBRA_MAC_ES_PEER_ACTIVE); | |
1535 | new_bgp_ready = zebra_evpn_mac_is_ready_for_bgp(mac->flags); | |
1536 | new_static = zebra_evpn_mac_is_static(mac); | |
24268cd0 | 1537 | |
b16e8004 DS |
1538 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC) { |
1539 | char mac_buf[MAC_BUF_SIZE]; | |
1540 | ||
24268cd0 | 1541 | zlog_debug( |
ef7b8be4 DL |
1542 | "sync-mac vni %u mac %pEA es %s %shold expired", |
1543 | mac->zevpn->vni, &mac->macaddr, | |
b16e8004 DS |
1544 | mac->es ? mac->es->esi_str : "-", |
1545 | zebra_evpn_zebra_mac_flag_dump(mac, mac_buf, | |
1546 | sizeof(mac_buf))); | |
1547 | } | |
24268cd0 | 1548 | |
b2998086 PR |
1549 | /* re-program the local mac in the dataplane if the mac is no |
1550 | * longer static | |
1551 | */ | |
1552 | if (old_static != new_static) | |
1553 | zebra_evpn_sync_mac_dp_install(mac, false /* set_inactive */, | |
1554 | false /* force_clear_static */, | |
1555 | __func__); | |
24268cd0 | 1556 | |
b2998086 PR |
1557 | /* inform bgp if needed */ |
1558 | if (old_bgp_ready != new_bgp_ready) | |
1559 | zebra_evpn_mac_send_add_del_to_client(mac, old_bgp_ready, | |
1560 | new_bgp_ready); | |
24268cd0 PR |
1561 | } |
1562 | ||
3198b2b3 | 1563 | static inline void zebra_evpn_mac_start_hold_timer(struct zebra_mac *mac) |
24268cd0 | 1564 | { |
b2998086 PR |
1565 | if (mac->hold_timer) |
1566 | return; | |
24268cd0 | 1567 | |
b16e8004 DS |
1568 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC) { |
1569 | char mac_buf[MAC_BUF_SIZE]; | |
1570 | ||
24268cd0 | 1571 | zlog_debug( |
ef7b8be4 DL |
1572 | "sync-mac vni %u mac %pEA es %s %shold started", |
1573 | mac->zevpn->vni, &mac->macaddr, | |
b16e8004 DS |
1574 | mac->es ? mac->es->esi_str : "-", |
1575 | zebra_evpn_zebra_mac_flag_dump(mac, mac_buf, | |
1576 | sizeof(mac_buf))); | |
1577 | } | |
b2998086 PR |
1578 | thread_add_timer(zrouter.master, zebra_evpn_mac_hold_exp_cb, mac, |
1579 | zmh_info->mac_hold_time, &mac->hold_timer); | |
24268cd0 PR |
1580 | } |
1581 | ||
3198b2b3 | 1582 | void zebra_evpn_mac_stop_hold_timer(struct zebra_mac *mac) |
24268cd0 | 1583 | { |
b2998086 PR |
1584 | if (!mac->hold_timer) |
1585 | return; | |
24268cd0 | 1586 | |
b16e8004 DS |
1587 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC) { |
1588 | char mac_buf[MAC_BUF_SIZE]; | |
1589 | ||
b2998086 | 1590 | zlog_debug( |
ef7b8be4 DL |
1591 | "sync-mac vni %u mac %pEA es %s %shold stopped", |
1592 | mac->zevpn->vni, &mac->macaddr, | |
b16e8004 DS |
1593 | mac->es ? mac->es->esi_str : "-", |
1594 | zebra_evpn_zebra_mac_flag_dump(mac, mac_buf, | |
1595 | sizeof(mac_buf))); | |
1596 | } | |
1597 | ||
b2998086 | 1598 | THREAD_OFF(mac->hold_timer); |
24268cd0 PR |
1599 | } |
1600 | ||
3198b2b3 | 1601 | void zebra_evpn_sync_mac_del(struct zebra_mac *mac) |
24268cd0 | 1602 | { |
b2998086 PR |
1603 | bool old_static; |
1604 | bool new_static; | |
24268cd0 | 1605 | |
b16e8004 DS |
1606 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC) { |
1607 | char mac_buf[MAC_BUF_SIZE]; | |
1608 | ||
b2998086 | 1609 | zlog_debug( |
ef7b8be4 DL |
1610 | "sync-mac del vni %u mac %pEA es %s seq %d f %s", |
1611 | mac->zevpn->vni, &mac->macaddr, | |
b2998086 | 1612 | mac->es ? mac->es->esi_str : "-", mac->loc_seq, |
b16e8004 DS |
1613 | zebra_evpn_zebra_mac_flag_dump(mac, mac_buf, |
1614 | sizeof(mac_buf))); | |
1615 | } | |
1616 | ||
b2998086 PR |
1617 | old_static = zebra_evpn_mac_is_static(mac); |
1618 | UNSET_FLAG(mac->flags, ZEBRA_MAC_ES_PEER_PROXY); | |
1619 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_ES_PEER_ACTIVE)) | |
1620 | zebra_evpn_mac_start_hold_timer(mac); | |
1621 | new_static = zebra_evpn_mac_is_static(mac); | |
24268cd0 | 1622 | |
b2998086 PR |
1623 | if (old_static != new_static) |
1624 | /* program the local mac in the kernel */ | |
1625 | zebra_evpn_sync_mac_dp_install(mac, false /* set_inactive */, | |
1626 | false /* force_clear_static */, | |
1627 | __func__); | |
24268cd0 PR |
1628 | } |
1629 | ||
f6371c34 | 1630 | static inline bool zebra_evpn_mac_is_bgp_seq_ok(struct zebra_evpn *zevpn, |
3198b2b3 | 1631 | struct zebra_mac *mac, |
852d9f97 | 1632 | uint32_t seq, bool sync) |
24268cd0 | 1633 | { |
7d99ad7f | 1634 | char mac_buf[MAC_BUF_SIZE]; |
b2998086 | 1635 | uint32_t tmp_seq; |
16de1338 | 1636 | const char *n_type; |
1e1398e3 | 1637 | bool is_local = false; |
24268cd0 | 1638 | |
16de1338 | 1639 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL)) { |
b2998086 | 1640 | tmp_seq = mac->loc_seq; |
16de1338 | 1641 | n_type = "local"; |
1e1398e3 | 1642 | is_local = true; |
16de1338 | 1643 | } else { |
b2998086 | 1644 | tmp_seq = mac->rem_seq; |
16de1338 AK |
1645 | n_type = "remote"; |
1646 | } | |
24268cd0 | 1647 | |
b2998086 | 1648 | if (seq < tmp_seq) { |
1e1398e3 SW |
1649 | |
1650 | if (is_local && !zebra_evpn_mac_is_ready_for_bgp(mac->flags)) { | |
1651 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC || IS_ZEBRA_DEBUG_VXLAN) | |
1652 | zlog_debug( | |
1653 | "%s-macip not ready vni %u %s-mac %pEA lower seq %u f 0x%x", | |
1654 | sync ? "sync" : "rem", zevpn->vni, | |
1655 | n_type, &mac->macaddr, tmp_seq, | |
1656 | mac->flags); | |
1657 | return true; | |
1658 | } | |
1659 | ||
b2998086 PR |
1660 | /* if the mac was never advertised to bgp we must accept |
1661 | * whatever sequence number bgp sends | |
b2998086 | 1662 | */ |
da823882 | 1663 | if (!is_local && zebra_vxlan_get_accept_bgp_seq()) { |
7d99ad7f SW |
1664 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC || |
1665 | IS_ZEBRA_DEBUG_VXLAN) { | |
b2998086 | 1666 | zlog_debug( |
852d9f97 | 1667 | "%s-macip accept vni %u %s-mac %pEA lower seq %u f %s", |
16de1338 | 1668 | sync ? "sync" : "rem", zevpn->vni, |
852d9f97 | 1669 | n_type, &mac->macaddr, tmp_seq, |
b16e8004 DS |
1670 | zebra_evpn_zebra_mac_flag_dump( |
1671 | mac, mac_buf, sizeof(mac_buf))); | |
1672 | } | |
1673 | ||
b2998086 PR |
1674 | return true; |
1675 | } | |
24268cd0 | 1676 | |
b16e8004 | 1677 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC || IS_ZEBRA_DEBUG_VXLAN) { |
b2998086 | 1678 | zlog_debug( |
852d9f97 | 1679 | "%s-macip ignore vni %u %s-mac %pEA as existing has higher seq %u f %s", |
16de1338 | 1680 | sync ? "sync" : "rem", zevpn->vni, n_type, |
852d9f97 | 1681 | &mac->macaddr, tmp_seq, |
b16e8004 DS |
1682 | zebra_evpn_zebra_mac_flag_dump( |
1683 | mac, mac_buf, sizeof(mac_buf))); | |
1684 | } | |
7d99ad7f | 1685 | |
b2998086 | 1686 | return false; |
24268cd0 PR |
1687 | } |
1688 | ||
b2998086 | 1689 | return true; |
24268cd0 PR |
1690 | } |
1691 | ||
852d9f97 SW |
1692 | struct zebra_mac *zebra_evpn_proc_sync_mac_update(struct zebra_evpn *zevpn, |
1693 | const struct ethaddr *macaddr, | |
1694 | uint16_t ipa_len, | |
1695 | const struct ipaddr *ipaddr, | |
1696 | uint8_t flags, uint32_t seq, | |
1697 | const esi_t *esi) | |
24268cd0 | 1698 | { |
3198b2b3 | 1699 | struct zebra_mac *mac; |
b2998086 PR |
1700 | bool inform_bgp = false; |
1701 | bool inform_dataplane = false; | |
1702 | bool seq_change = false; | |
1703 | bool es_change = false; | |
1704 | uint32_t tmp_seq; | |
b2998086 PR |
1705 | char ipbuf[INET6_ADDRSTRLEN]; |
1706 | bool old_local = false; | |
1707 | bool old_bgp_ready; | |
1708 | bool new_bgp_ready; | |
852d9f97 | 1709 | bool created = false; |
24268cd0 | 1710 | |
b2998086 PR |
1711 | mac = zebra_evpn_mac_lookup(zevpn, macaddr); |
1712 | if (!mac) { | |
1713 | /* if it is a new local path we need to inform both | |
1714 | * the control protocol and the data-plane | |
1715 | */ | |
1716 | inform_bgp = true; | |
1717 | inform_dataplane = true; | |
24268cd0 | 1718 | |
b2998086 PR |
1719 | /* create the MAC and associate it with the dest ES */ |
1720 | mac = zebra_evpn_mac_add(zevpn, macaddr); | |
1721 | zebra_evpn_es_mac_ref(mac, esi); | |
24268cd0 | 1722 | |
b2998086 PR |
1723 | /* local mac activated by an ES peer */ |
1724 | SET_FLAG(mac->flags, ZEBRA_MAC_LOCAL); | |
1725 | /* if mac-only route setup peer flags */ | |
1726 | if (!ipa_len) { | |
1727 | if (CHECK_FLAG(flags, ZEBRA_MACIP_TYPE_PROXY_ADVERT)) | |
1728 | SET_FLAG(mac->flags, ZEBRA_MAC_ES_PEER_PROXY); | |
1729 | else | |
1730 | SET_FLAG(mac->flags, ZEBRA_MAC_ES_PEER_ACTIVE); | |
1731 | } | |
1732 | SET_FLAG(mac->flags, ZEBRA_MAC_LOCAL_INACTIVE); | |
1733 | old_bgp_ready = false; | |
1734 | new_bgp_ready = zebra_evpn_mac_is_ready_for_bgp(mac->flags); | |
852d9f97 | 1735 | created = true; |
b2998086 PR |
1736 | } else { |
1737 | uint32_t old_flags; | |
1738 | uint32_t new_flags; | |
1739 | bool old_static; | |
1740 | bool new_static; | |
1741 | bool sticky; | |
1742 | bool remote_gw; | |
24268cd0 | 1743 | |
f1dbb1c7 DS |
1744 | mac->uptime = monotime(NULL); |
1745 | ||
b2998086 PR |
1746 | old_flags = mac->flags; |
1747 | sticky = !!CHECK_FLAG(old_flags, ZEBRA_MAC_STICKY); | |
1748 | remote_gw = !!CHECK_FLAG(old_flags, ZEBRA_MAC_REMOTE_DEF_GW); | |
1749 | if (sticky || remote_gw) { | |
1750 | if (IS_ZEBRA_DEBUG_EVPN_MH_NEIGH) | |
1751 | zlog_debug( | |
ef7b8be4 DL |
1752 | "Ignore sync-macip vni %u mac %pEA%s%s%s%s", |
1753 | zevpn->vni, macaddr, | |
b2998086 PR |
1754 | ipa_len ? " IP " : "", |
1755 | ipa_len ? ipaddr2str(ipaddr, ipbuf, | |
1756 | sizeof(ipbuf)) | |
1757 | : "", | |
1758 | sticky ? " sticky" : "", | |
1759 | remote_gw ? " remote_gw" : ""); | |
b2998086 PR |
1760 | return NULL; |
1761 | } | |
852d9f97 | 1762 | if (!zebra_evpn_mac_is_bgp_seq_ok(zevpn, mac, seq, true)) |
b2998086 | 1763 | return NULL; |
24268cd0 | 1764 | |
b2998086 PR |
1765 | old_local = !!CHECK_FLAG(old_flags, ZEBRA_MAC_LOCAL); |
1766 | old_static = zebra_evpn_mac_is_static(mac); | |
24268cd0 | 1767 | |
b2998086 PR |
1768 | /* re-build the mac flags */ |
1769 | new_flags = 0; | |
1770 | SET_FLAG(new_flags, ZEBRA_MAC_LOCAL); | |
1771 | /* retain old local activity flag */ | |
852d9f97 | 1772 | if (old_flags & ZEBRA_MAC_LOCAL) |
b2998086 | 1773 | new_flags |= (old_flags & ZEBRA_MAC_LOCAL_INACTIVE); |
852d9f97 | 1774 | else |
b2998086 | 1775 | new_flags |= ZEBRA_MAC_LOCAL_INACTIVE; |
852d9f97 | 1776 | |
b2998086 PR |
1777 | if (ipa_len) { |
1778 | /* if mac-ip route do NOT update the peer flags | |
1779 | * i.e. retain only flags as is | |
1780 | */ | |
1781 | new_flags |= (old_flags & ZEBRA_MAC_ALL_PEER_FLAGS); | |
1782 | } else { | |
1783 | /* if mac-only route update peer flags */ | |
1784 | if (CHECK_FLAG(flags, ZEBRA_MACIP_TYPE_PROXY_ADVERT)) { | |
1785 | SET_FLAG(new_flags, ZEBRA_MAC_ES_PEER_PROXY); | |
1786 | /* if the mac was peer-active previously we | |
1787 | * need to keep the flag and start the | |
1788 | * holdtimer on it. the peer-active flag is | |
1789 | * cleared on holdtimer expiry. | |
1790 | */ | |
1791 | if (CHECK_FLAG(old_flags, | |
1792 | ZEBRA_MAC_ES_PEER_ACTIVE)) { | |
1793 | SET_FLAG(new_flags, | |
1794 | ZEBRA_MAC_ES_PEER_ACTIVE); | |
1795 | zebra_evpn_mac_start_hold_timer(mac); | |
1796 | } | |
1797 | } else { | |
1798 | SET_FLAG(new_flags, ZEBRA_MAC_ES_PEER_ACTIVE); | |
1799 | /* stop hold timer if a peer has verified | |
1800 | * reachability | |
1801 | */ | |
1802 | zebra_evpn_mac_stop_hold_timer(mac); | |
1803 | } | |
1804 | } | |
1805 | mac->rem_seq = 0; | |
8b07f173 | 1806 | zebra_evpn_mac_clear_fwd_info(mac); |
b2998086 | 1807 | mac->flags = new_flags; |
24268cd0 | 1808 | |
b16e8004 DS |
1809 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC && (old_flags != new_flags)) { |
1810 | char mac_buf[MAC_BUF_SIZE], omac_buf[MAC_BUF_SIZE]; | |
3198b2b3 | 1811 | struct zebra_mac omac; |
b16e8004 DS |
1812 | |
1813 | omac.flags = old_flags; | |
b2998086 | 1814 | zlog_debug( |
ef7b8be4 DL |
1815 | "sync-mac vni %u mac %pEA old_f %snew_f %s", |
1816 | zevpn->vni, macaddr, | |
b16e8004 DS |
1817 | zebra_evpn_zebra_mac_flag_dump( |
1818 | &omac, omac_buf, sizeof(omac_buf)), | |
1819 | zebra_evpn_zebra_mac_flag_dump( | |
1820 | mac, mac_buf, sizeof(mac_buf))); | |
1821 | } | |
24268cd0 | 1822 | |
b2998086 PR |
1823 | /* update es */ |
1824 | es_change = zebra_evpn_es_mac_ref(mac, esi); | |
1825 | /* if mac dest change - inform both sides */ | |
1826 | if (es_change) { | |
1827 | inform_bgp = true; | |
1828 | inform_dataplane = true; | |
b2998086 | 1829 | } |
8b07f173 | 1830 | |
b2998086 PR |
1831 | /* if peer-flag is being set notify dataplane that the |
1832 | * entry must not be expired because of local inactivity | |
1833 | */ | |
1834 | new_static = zebra_evpn_mac_is_static(mac); | |
1835 | if (old_static != new_static) | |
1836 | inform_dataplane = true; | |
24268cd0 | 1837 | |
b2998086 PR |
1838 | old_bgp_ready = zebra_evpn_mac_is_ready_for_bgp(old_flags); |
1839 | new_bgp_ready = zebra_evpn_mac_is_ready_for_bgp(mac->flags); | |
1840 | if (old_bgp_ready != new_bgp_ready) | |
1841 | inform_bgp = true; | |
1842 | } | |
24268cd0 | 1843 | |
24268cd0 | 1844 | |
b2998086 PR |
1845 | /* update sequence number; if that results in a new local sequence |
1846 | * inform bgp | |
1847 | */ | |
1848 | tmp_seq = MAX(mac->loc_seq, seq); | |
1849 | if (tmp_seq != mac->loc_seq) { | |
1850 | mac->loc_seq = tmp_seq; | |
1851 | seq_change = true; | |
1852 | inform_bgp = true; | |
1853 | } | |
24268cd0 | 1854 | |
b16e8004 DS |
1855 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC) { |
1856 | char mac_buf[MAC_BUF_SIZE]; | |
1857 | ||
ef7b8be4 | 1858 | zlog_debug("sync-mac %s vni %u mac %pEA es %s seq %d f %s%s%s", |
852d9f97 | 1859 | created ? "created" : "updated", zevpn->vni, macaddr, |
b2998086 | 1860 | mac->es ? mac->es->esi_str : "-", mac->loc_seq, |
b16e8004 DS |
1861 | zebra_evpn_zebra_mac_flag_dump(mac, mac_buf, |
1862 | sizeof(mac_buf)), | |
1863 | inform_bgp ? "inform_bgp" : "", | |
b2998086 | 1864 | inform_dataplane ? " inform_dp" : ""); |
b16e8004 | 1865 | } |
24268cd0 | 1866 | |
b2998086 PR |
1867 | if (inform_bgp) |
1868 | zebra_evpn_mac_send_add_del_to_client(mac, old_bgp_ready, | |
1869 | new_bgp_ready); | |
24268cd0 | 1870 | |
b2998086 PR |
1871 | /* neighs using the mac may need to be re-sent to |
1872 | * bgp with updated info | |
1873 | */ | |
1874 | if (seq_change || es_change || !old_local) | |
1875 | zebra_evpn_process_neigh_on_local_mac_change( | |
1876 | zevpn, mac, seq_change, es_change); | |
24268cd0 | 1877 | |
852d9f97 SW |
1878 | if (inform_dataplane && !ipa_len) { |
1879 | /* program the local mac in the kernel. when the ES | |
1880 | * change we need to force the dataplane to reset | |
1881 | * the activity as we are yet to establish activity | |
1882 | * locally | |
1883 | */ | |
1884 | zebra_evpn_sync_mac_dp_install(mac, false /* set_inactive */, | |
1885 | false /* force_clear_static */, | |
1886 | __func__); | |
b2998086 | 1887 | } |
24268cd0 | 1888 | |
b2998086 | 1889 | return mac; |
24268cd0 PR |
1890 | } |
1891 | ||
07b12758 | 1892 | /* update local forwarding info. return true if a dest-ES change |
b2998086 PR |
1893 | * is detected |
1894 | */ | |
3198b2b3 | 1895 | static bool zebra_evpn_local_mac_update_fwd_info(struct zebra_mac *mac, |
d9d3455e PR |
1896 | struct interface *ifp, |
1897 | vlanid_t vid) | |
24268cd0 | 1898 | { |
b2998086 PR |
1899 | struct zebra_if *zif = ifp->info; |
1900 | bool es_change; | |
47c58929 PG |
1901 | ns_id_t local_ns_id = NS_DEFAULT; |
1902 | struct zebra_vrf *zvrf; | |
00a7710c | 1903 | struct zebra_evpn_es *es; |
47c58929 | 1904 | |
096f7609 | 1905 | zvrf = ifp->vrf->info; |
47c58929 PG |
1906 | if (zvrf && zvrf->zns) |
1907 | local_ns_id = zvrf->zns->ns_id; | |
24268cd0 | 1908 | |
8b07f173 | 1909 | zebra_evpn_mac_clear_fwd_info(mac); |
24268cd0 | 1910 | |
00a7710c AK |
1911 | es = zif->es_info.es; |
1912 | if (es && (es->flags & ZEBRA_EVPNES_BYPASS)) | |
1913 | es = NULL; | |
1914 | es_change = zebra_evpn_es_mac_ref_entry(mac, es); | |
24268cd0 | 1915 | |
b2998086 PR |
1916 | if (!mac->es) { |
1917 | /* if es is set fwd_info is not-relevant/taped-out */ | |
1918 | mac->fwd_info.local.ifindex = ifp->ifindex; | |
47c58929 | 1919 | mac->fwd_info.local.ns_id = local_ns_id; |
b2998086 | 1920 | mac->fwd_info.local.vid = vid; |
8b07f173 | 1921 | zebra_evpn_mac_ifp_link(mac, ifp); |
24268cd0 PR |
1922 | } |
1923 | ||
b2998086 | 1924 | return es_change; |
24268cd0 PR |
1925 | } |
1926 | ||
24268cd0 | 1927 | /* Notify Local MACs to the clienti, skips GW MAC */ |
b2998086 PR |
1928 | static void zebra_evpn_send_mac_hash_entry_to_client(struct hash_bucket *bucket, |
1929 | void *arg) | |
24268cd0 PR |
1930 | { |
1931 | struct mac_walk_ctx *wctx = arg; | |
3198b2b3 | 1932 | struct zebra_mac *zmac = bucket->data; |
24268cd0 PR |
1933 | |
1934 | if (CHECK_FLAG(zmac->flags, ZEBRA_MAC_DEF_GW)) | |
1935 | return; | |
1936 | ||
1937 | if (CHECK_FLAG(zmac->flags, ZEBRA_MAC_LOCAL)) | |
b2998086 PR |
1938 | zebra_evpn_mac_send_add_to_client(wctx->zevpn->vni, |
1939 | &zmac->macaddr, zmac->flags, | |
1940 | zmac->loc_seq, zmac->es); | |
24268cd0 PR |
1941 | } |
1942 | ||
1943 | /* Iterator to Notify Local MACs of a EVPN */ | |
f6371c34 | 1944 | void zebra_evpn_send_mac_list_to_client(struct zebra_evpn *zevpn) |
24268cd0 PR |
1945 | { |
1946 | struct mac_walk_ctx wctx; | |
1947 | ||
1948 | if (!zevpn->mac_table) | |
1949 | return; | |
1950 | ||
6006b807 | 1951 | memset(&wctx, 0, sizeof(wctx)); |
24268cd0 PR |
1952 | wctx.zevpn = zevpn; |
1953 | ||
b2998086 PR |
1954 | hash_iterate(zevpn->mac_table, zebra_evpn_send_mac_hash_entry_to_client, |
1955 | &wctx); | |
24268cd0 PR |
1956 | } |
1957 | ||
3198b2b3 | 1958 | void zebra_evpn_rem_mac_del(struct zebra_evpn *zevpn, struct zebra_mac *mac) |
24268cd0 | 1959 | { |
b2998086 PR |
1960 | zebra_evpn_process_neigh_on_remote_mac_del(zevpn, mac); |
1961 | /* the remote sequence number in the auto mac entry | |
1962 | * needs to be reset to 0 as the mac entry may have | |
1963 | * been removed on all VTEPs (including | |
1964 | * the originating one) | |
1965 | */ | |
1966 | mac->rem_seq = 0; | |
24268cd0 | 1967 | |
b2998086 PR |
1968 | /* If all remote neighbors referencing a remote MAC |
1969 | * go away, we need to uninstall the MAC. | |
1970 | */ | |
1971 | if (remote_neigh_count(mac) == 0) { | |
f3722826 | 1972 | zebra_evpn_rem_mac_uninstall(zevpn, mac, false /*force*/); |
b2998086 PR |
1973 | zebra_evpn_es_mac_deref_entry(mac); |
1974 | UNSET_FLAG(mac->flags, ZEBRA_MAC_REMOTE); | |
24268cd0 PR |
1975 | } |
1976 | ||
b2998086 PR |
1977 | if (list_isempty(mac->neigh_list)) |
1978 | zebra_evpn_mac_del(zevpn, mac); | |
1979 | else | |
1980 | SET_FLAG(mac->flags, ZEBRA_MAC_AUTO); | |
24268cd0 PR |
1981 | } |
1982 | ||
b2998086 PR |
1983 | /* Print Duplicate MAC */ |
1984 | void zebra_evpn_print_dad_mac_hash(struct hash_bucket *bucket, void *ctxt) | |
24268cd0 | 1985 | { |
3198b2b3 | 1986 | struct zebra_mac *mac; |
24268cd0 | 1987 | |
3198b2b3 | 1988 | mac = (struct zebra_mac *)bucket->data; |
b2998086 PR |
1989 | if (!mac) |
1990 | return; | |
24268cd0 | 1991 | |
b2998086 PR |
1992 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_DUPLICATE)) |
1993 | zebra_evpn_print_mac_hash(bucket, ctxt); | |
24268cd0 PR |
1994 | } |
1995 | ||
b2998086 PR |
1996 | /* Print Duplicate MAC in detail */ |
1997 | void zebra_evpn_print_dad_mac_hash_detail(struct hash_bucket *bucket, | |
1998 | void *ctxt) | |
24268cd0 | 1999 | { |
3198b2b3 | 2000 | struct zebra_mac *mac; |
24268cd0 | 2001 | |
3198b2b3 | 2002 | mac = (struct zebra_mac *)bucket->data; |
b2998086 PR |
2003 | if (!mac) |
2004 | return; | |
24268cd0 | 2005 | |
b2998086 PR |
2006 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_DUPLICATE)) |
2007 | zebra_evpn_print_mac_hash_detail(bucket, ctxt); | |
24268cd0 | 2008 | } |
19fdd1be | 2009 | |
852d9f97 SW |
2010 | int zebra_evpn_mac_remote_macip_add(struct zebra_evpn *zevpn, |
2011 | struct zebra_vrf *zvrf, | |
2012 | const struct ethaddr *macaddr, | |
2013 | struct in_addr vtep_ip, uint8_t flags, | |
2014 | uint32_t seq, const esi_t *esi) | |
19fdd1be | 2015 | { |
19fdd1be PR |
2016 | bool sticky; |
2017 | bool remote_gw; | |
2018 | int update_mac = 0; | |
2019 | bool do_dad = false; | |
2020 | bool is_dup_detect = false; | |
2021 | esi_t *old_esi; | |
2022 | bool old_static = false; | |
3198b2b3 | 2023 | struct zebra_mac *mac; |
8e1337c5 AK |
2024 | bool old_es_present; |
2025 | bool new_es_present; | |
19fdd1be PR |
2026 | |
2027 | sticky = !!CHECK_FLAG(flags, ZEBRA_MACIP_TYPE_STICKY); | |
2028 | remote_gw = !!CHECK_FLAG(flags, ZEBRA_MACIP_TYPE_GW); | |
2029 | ||
2030 | mac = zebra_evpn_mac_lookup(zevpn, macaddr); | |
2031 | ||
2032 | /* Ignore if the mac is already present as a gateway mac */ | |
2033 | if (mac && CHECK_FLAG(mac->flags, ZEBRA_MAC_DEF_GW) | |
2034 | && CHECK_FLAG(flags, ZEBRA_MACIP_TYPE_GW)) { | |
2035 | if (IS_ZEBRA_DEBUG_VXLAN) | |
2036 | zlog_debug( | |
852d9f97 SW |
2037 | "Ignore remote MACIP ADD VNI %u MAC %pEA as MAC is already configured as gateway MAC", |
2038 | zevpn->vni, macaddr); | |
19fdd1be PR |
2039 | return -1; |
2040 | } | |
2041 | ||
2042 | old_esi = (mac && mac->es) ? &mac->es->esi : zero_esi; | |
2043 | ||
2044 | /* check if the remote MAC is unknown or has a change. | |
2045 | * If so, that needs to be updated first. Note that client could | |
2046 | * install MAC and MACIP separately or just install the latter. | |
2047 | */ | |
2048 | if (!mac || !CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE) | |
2049 | || sticky != !!CHECK_FLAG(mac->flags, ZEBRA_MAC_STICKY) | |
2050 | || remote_gw != !!CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE_DEF_GW) | |
2051 | || !IPV4_ADDR_SAME(&mac->fwd_info.r_vtep_ip, &vtep_ip) | |
2052 | || memcmp(old_esi, esi, sizeof(esi_t)) || seq != mac->rem_seq) | |
2053 | update_mac = 1; | |
2054 | ||
2055 | if (update_mac) { | |
2056 | if (!mac) { | |
2057 | mac = zebra_evpn_mac_add(zevpn, macaddr); | |
19fdd1be | 2058 | zebra_evpn_es_mac_ref(mac, esi); |
19fdd1be | 2059 | } else { |
19fdd1be PR |
2060 | /* When host moves but changes its (MAC,IP) |
2061 | * binding, BGP may install a MACIP entry that | |
2062 | * corresponds to "older" location of the host | |
2063 | * in transient situations (because {IP1,M1} | |
2064 | * is a different route from {IP1,M2}). Check | |
2065 | * the sequence number and ignore this update | |
2066 | * if appropriate. | |
2067 | */ | |
852d9f97 SW |
2068 | if (!zebra_evpn_mac_is_bgp_seq_ok(zevpn, mac, seq, |
2069 | false)) | |
19fdd1be | 2070 | return -1; |
c1735c08 | 2071 | |
8e1337c5 | 2072 | old_es_present = !!mac->es; |
c1735c08 | 2073 | zebra_evpn_es_mac_ref(mac, esi); |
8e1337c5 AK |
2074 | new_es_present = !!mac->es; |
2075 | /* XXX - dataplane is curently not able to handle a MAC | |
2076 | * replace if the destination changes from L2-NHG to | |
2077 | * single VTEP and vice-versa. So delete the old entry | |
2078 | * and re-install | |
2079 | */ | |
2080 | if (old_es_present != new_es_present) | |
2081 | zebra_evpn_rem_mac_uninstall(zevpn, mac, false); | |
19fdd1be PR |
2082 | } |
2083 | ||
2084 | /* Check MAC's curent state is local (this is the case | |
2085 | * where MAC has moved from L->R) and check previous | |
2086 | * detection started via local learning. | |
2087 | * RFC-7432: A PE/VTEP that detects a MAC mobility | |
2088 | * event via local learning starts an M-second timer. | |
2089 | * | |
2090 | * VTEP-IP or seq. change alone is not considered | |
2091 | * for dup. detection. | |
2092 | * | |
2093 | * MAC is already marked duplicate set dad, then | |
2094 | * is_dup_detect will be set to not install the entry. | |
2095 | */ | |
2096 | if ((!CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE) | |
2097 | && mac->dad_count) | |
2098 | || CHECK_FLAG(mac->flags, ZEBRA_MAC_DUPLICATE)) | |
2099 | do_dad = true; | |
2100 | ||
2101 | /* Remove local MAC from BGP. */ | |
2102 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL)) { | |
2103 | /* force drop the sync flags */ | |
2104 | old_static = zebra_evpn_mac_is_static(mac); | |
b16e8004 DS |
2105 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC) { |
2106 | char mac_buf[MAC_BUF_SIZE]; | |
2107 | ||
19fdd1be | 2108 | zlog_debug( |
ef7b8be4 DL |
2109 | "sync-mac->remote vni %u mac %pEA es %s seq %d f %s", |
2110 | zevpn->vni, macaddr, | |
19fdd1be | 2111 | mac->es ? mac->es->esi_str : "-", |
b16e8004 DS |
2112 | mac->loc_seq, |
2113 | zebra_evpn_zebra_mac_flag_dump( | |
2114 | mac, mac_buf, sizeof(mac_buf))); | |
2115 | } | |
2116 | ||
19fdd1be PR |
2117 | zebra_evpn_mac_clear_sync_info(mac); |
2118 | zebra_evpn_mac_send_del_to_client(zevpn->vni, macaddr, | |
2119 | mac->flags, | |
2120 | false /* force */); | |
2121 | } | |
2122 | ||
2123 | /* Set "auto" and "remote" forwarding info. */ | |
8b07f173 | 2124 | zebra_evpn_mac_clear_fwd_info(mac); |
19fdd1be | 2125 | UNSET_FLAG(mac->flags, ZEBRA_MAC_ALL_LOCAL_FLAGS); |
19fdd1be PR |
2126 | SET_FLAG(mac->flags, ZEBRA_MAC_REMOTE); |
2127 | mac->fwd_info.r_vtep_ip = vtep_ip; | |
2128 | ||
2129 | if (sticky) | |
2130 | SET_FLAG(mac->flags, ZEBRA_MAC_STICKY); | |
2131 | else | |
2132 | UNSET_FLAG(mac->flags, ZEBRA_MAC_STICKY); | |
2133 | ||
2134 | if (remote_gw) | |
2135 | SET_FLAG(mac->flags, ZEBRA_MAC_REMOTE_DEF_GW); | |
2136 | else | |
2137 | UNSET_FLAG(mac->flags, ZEBRA_MAC_REMOTE_DEF_GW); | |
2138 | ||
2139 | zebra_evpn_dup_addr_detect_for_mac( | |
2140 | zvrf, mac, mac->fwd_info.r_vtep_ip, do_dad, | |
2141 | &is_dup_detect, false); | |
2142 | ||
2143 | if (!is_dup_detect) { | |
2144 | zebra_evpn_process_neigh_on_remote_mac_add(zevpn, mac); | |
2145 | /* Install the entry. */ | |
2146 | zebra_evpn_rem_mac_install(zevpn, mac, old_static); | |
2147 | } | |
2148 | } | |
2149 | ||
2150 | /* Update seq number. */ | |
2151 | mac->rem_seq = seq; | |
2152 | ||
852d9f97 | 2153 | UNSET_FLAG(mac->flags, ZEBRA_MAC_AUTO); |
19fdd1be PR |
2154 | return 0; |
2155 | } | |
d9d3455e | 2156 | |
f6371c34 DS |
2157 | int zebra_evpn_add_update_local_mac(struct zebra_vrf *zvrf, |
2158 | struct zebra_evpn *zevpn, | |
d9d3455e | 2159 | struct interface *ifp, |
1a3bd37f | 2160 | const struct ethaddr *macaddr, vlanid_t vid, |
d9d3455e | 2161 | bool sticky, bool local_inactive, |
3198b2b3 | 2162 | bool dp_static, struct zebra_mac *mac) |
d9d3455e | 2163 | { |
d9d3455e PR |
2164 | bool mac_sticky = false; |
2165 | bool inform_client = false; | |
2166 | bool upd_neigh = false; | |
2167 | bool is_dup_detect = false; | |
2168 | struct in_addr vtep_ip = {.s_addr = 0}; | |
2169 | bool es_change = false; | |
2170 | bool new_bgp_ready; | |
2171 | /* assume inactive if not present or if not local */ | |
2172 | bool old_local_inactive = true; | |
2173 | bool old_bgp_ready = false; | |
2174 | bool inform_dataplane = false; | |
2175 | bool new_static = false; | |
2176 | ||
2bdd4461 | 2177 | assert(ifp); |
d9d3455e | 2178 | /* Check if we need to create or update or it is a NO-OP. */ |
00a7710c AK |
2179 | if (!mac) |
2180 | mac = zebra_evpn_mac_lookup(zevpn, macaddr); | |
d9d3455e PR |
2181 | if (!mac) { |
2182 | if (IS_ZEBRA_DEBUG_VXLAN || IS_ZEBRA_DEBUG_EVPN_MH_MAC) | |
2183 | zlog_debug( | |
ef7b8be4 DL |
2184 | "ADD %sMAC %pEA intf %s(%u) VID %u -> VNI %u%s", |
2185 | sticky ? "sticky " : "", macaddr, | |
d9d3455e PR |
2186 | ifp->name, ifp->ifindex, vid, zevpn->vni, |
2187 | local_inactive ? " local-inactive" : ""); | |
2188 | ||
2189 | mac = zebra_evpn_mac_add(zevpn, macaddr); | |
d9d3455e PR |
2190 | SET_FLAG(mac->flags, ZEBRA_MAC_LOCAL); |
2191 | es_change = zebra_evpn_local_mac_update_fwd_info(mac, ifp, vid); | |
2192 | if (sticky) | |
2193 | SET_FLAG(mac->flags, ZEBRA_MAC_STICKY); | |
2194 | inform_client = true; | |
2195 | } else { | |
b16e8004 DS |
2196 | if (IS_ZEBRA_DEBUG_VXLAN || IS_ZEBRA_DEBUG_EVPN_MH_MAC) { |
2197 | char mac_buf[MAC_BUF_SIZE]; | |
2198 | ||
d9d3455e | 2199 | zlog_debug( |
ef7b8be4 DL |
2200 | "UPD %sMAC %pEA intf %s(%u) VID %u -> VNI %u %scurFlags %s", |
2201 | sticky ? "sticky " : "", macaddr, | |
d9d3455e PR |
2202 | ifp->name, ifp->ifindex, vid, zevpn->vni, |
2203 | local_inactive ? "local-inactive " : "", | |
b16e8004 DS |
2204 | zebra_evpn_zebra_mac_flag_dump( |
2205 | mac, mac_buf, sizeof(mac_buf))); | |
2206 | } | |
d9d3455e PR |
2207 | |
2208 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL)) { | |
2209 | struct interface *old_ifp; | |
2210 | vlanid_t old_vid; | |
2211 | bool old_static; | |
2212 | ||
2213 | zebra_evpn_mac_get_access_info(mac, &old_ifp, &old_vid); | |
2214 | old_bgp_ready = | |
2215 | zebra_evpn_mac_is_ready_for_bgp(mac->flags); | |
2216 | old_local_inactive = | |
2217 | !!(mac->flags & ZEBRA_MAC_LOCAL_INACTIVE); | |
2218 | old_static = zebra_evpn_mac_is_static(mac); | |
2219 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_STICKY)) | |
2220 | mac_sticky = true; | |
00a7710c AK |
2221 | es_change = zebra_evpn_local_mac_update_fwd_info( |
2222 | mac, ifp, vid); | |
d9d3455e PR |
2223 | |
2224 | /* | |
2225 | * Update any changes and if changes are relevant to | |
2226 | * BGP, note it. | |
2227 | */ | |
2228 | if (mac_sticky == sticky && old_ifp == ifp | |
2229 | && old_vid == vid | |
2230 | && old_local_inactive == local_inactive | |
00a7710c | 2231 | && dp_static == old_static && !es_change) { |
d9d3455e PR |
2232 | if (IS_ZEBRA_DEBUG_VXLAN) |
2233 | zlog_debug( | |
ef7b8be4 | 2234 | " Add/Update %sMAC %pEA intf %s(%u) VID %u -> VNI %u%s, " |
d9d3455e | 2235 | "entry exists and has not changed ", |
4e9a9863 | 2236 | sticky ? "sticky " : "", |
ef7b8be4 DL |
2237 | macaddr, ifp->name, |
2238 | ifp->ifindex, vid, zevpn->vni, | |
d9d3455e PR |
2239 | local_inactive |
2240 | ? " local_inactive" | |
2241 | : ""); | |
2242 | return 0; | |
2243 | } | |
2244 | if (mac_sticky != sticky) { | |
2245 | if (sticky) | |
2246 | SET_FLAG(mac->flags, ZEBRA_MAC_STICKY); | |
2247 | else | |
2248 | UNSET_FLAG(mac->flags, | |
2249 | ZEBRA_MAC_STICKY); | |
2250 | inform_client = true; | |
2251 | } | |
2252 | ||
d9d3455e PR |
2253 | /* If an es_change is detected we need to advertise |
2254 | * the route with a sequence that is one | |
2255 | * greater. This is need to indicate a mac-move | |
2256 | * to the ES peers | |
2257 | */ | |
2258 | if (es_change) { | |
00a7710c AK |
2259 | /* update the sequence number only if the entry |
2260 | * is locally active | |
2261 | */ | |
2262 | if (!local_inactive) | |
2263 | mac->loc_seq = mac->loc_seq + 1; | |
d9d3455e PR |
2264 | /* force drop the peer/sync info as it is |
2265 | * simply no longer relevant | |
2266 | */ | |
2267 | if (CHECK_FLAG(mac->flags, | |
2268 | ZEBRA_MAC_ALL_PEER_FLAGS)) { | |
2269 | zebra_evpn_mac_clear_sync_info(mac); | |
2270 | new_static = | |
2271 | zebra_evpn_mac_is_static(mac); | |
2272 | /* if we clear peer-flags we | |
2273 | * also need to notify the dataplane | |
2274 | * to drop the static flag | |
2275 | */ | |
2276 | if (old_static != new_static) | |
2277 | inform_dataplane = true; | |
2278 | } | |
2279 | } | |
2280 | } else if (CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE) | |
2281 | || CHECK_FLAG(mac->flags, ZEBRA_MAC_AUTO)) { | |
2282 | bool do_dad = false; | |
2283 | ||
2284 | /* | |
2285 | * MAC has either moved or was "internally" created due | |
2286 | * to a neighbor learn and is now actually learnt. If | |
2287 | * it was learnt as a remote sticky MAC, this is an | |
2288 | * operator error. | |
2289 | */ | |
2290 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_STICKY)) { | |
2291 | flog_warn( | |
2292 | EC_ZEBRA_STICKY_MAC_ALREADY_LEARNT, | |
ef7b8be4 DL |
2293 | "MAC %pEA already learnt as remote sticky MAC behind VTEP %pI4 VNI %u", |
2294 | macaddr, | |
9bcef951 | 2295 | &mac->fwd_info.r_vtep_ip, |
d9d3455e PR |
2296 | zevpn->vni); |
2297 | return 0; | |
2298 | } | |
2299 | ||
2300 | /* If an actual move, compute MAC's seq number */ | |
2301 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE)) { | |
2302 | mac->loc_seq = | |
2303 | MAX(mac->rem_seq + 1, mac->loc_seq); | |
2304 | vtep_ip = mac->fwd_info.r_vtep_ip; | |
2305 | /* Trigger DAD for remote MAC */ | |
2306 | do_dad = true; | |
2307 | } | |
2308 | ||
2309 | UNSET_FLAG(mac->flags, ZEBRA_MAC_REMOTE); | |
2310 | UNSET_FLAG(mac->flags, ZEBRA_MAC_AUTO); | |
2311 | SET_FLAG(mac->flags, ZEBRA_MAC_LOCAL); | |
2312 | es_change = zebra_evpn_local_mac_update_fwd_info( | |
2313 | mac, ifp, vid); | |
2314 | if (sticky) | |
2315 | SET_FLAG(mac->flags, ZEBRA_MAC_STICKY); | |
2316 | else | |
2317 | UNSET_FLAG(mac->flags, ZEBRA_MAC_STICKY); | |
2318 | /* | |
2319 | * We have to inform BGP of this MAC as well as process | |
2320 | * all neighbors. | |
2321 | */ | |
2322 | inform_client = true; | |
2323 | upd_neigh = true; | |
2324 | ||
2325 | zebra_evpn_dup_addr_detect_for_mac( | |
2326 | zvrf, mac, vtep_ip, do_dad, &is_dup_detect, | |
2327 | true); | |
2328 | if (is_dup_detect) { | |
2329 | inform_client = false; | |
2330 | upd_neigh = false; | |
839dfe29 | 2331 | es_change = false; |
d9d3455e PR |
2332 | } |
2333 | } | |
2334 | } | |
2335 | ||
2336 | /* if the dataplane thinks the entry is sync but it is | |
69711b3f AK |
2337 | * not sync in zebra (or vice-versa) we need to re-install |
2338 | * to fixup | |
d9d3455e | 2339 | */ |
69711b3f AK |
2340 | new_static = zebra_evpn_mac_is_static(mac); |
2341 | if (dp_static != new_static) | |
2342 | inform_dataplane = true; | |
d9d3455e PR |
2343 | |
2344 | if (local_inactive) | |
2345 | SET_FLAG(mac->flags, ZEBRA_MAC_LOCAL_INACTIVE); | |
2346 | else | |
2347 | UNSET_FLAG(mac->flags, ZEBRA_MAC_LOCAL_INACTIVE); | |
2348 | ||
2349 | new_bgp_ready = zebra_evpn_mac_is_ready_for_bgp(mac->flags); | |
2350 | /* if local-activity has changed we need update bgp | |
2351 | * even if bgp already knows about the mac | |
2352 | */ | |
2353 | if ((old_local_inactive != local_inactive) | |
2354 | || (new_bgp_ready != old_bgp_ready)) { | |
b16e8004 DS |
2355 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC) { |
2356 | char mac_buf[MAC_BUF_SIZE]; | |
2357 | ||
d9d3455e | 2358 | zlog_debug( |
ef7b8be4 DL |
2359 | "local mac vni %u mac %pEA es %s seq %d f %s%s", |
2360 | zevpn->vni, macaddr, | |
d9d3455e | 2361 | mac->es ? mac->es->esi_str : "", mac->loc_seq, |
b16e8004 DS |
2362 | zebra_evpn_zebra_mac_flag_dump(mac, mac_buf, |
2363 | sizeof(mac_buf)), | |
2364 | local_inactive ? "local-inactive" : ""); | |
2365 | } | |
2366 | ||
839dfe29 CS |
2367 | if (!is_dup_detect) |
2368 | inform_client = true; | |
d9d3455e PR |
2369 | } |
2370 | ||
2371 | if (es_change) { | |
2372 | inform_client = true; | |
2373 | upd_neigh = true; | |
2374 | } | |
2375 | ||
2376 | /* Inform dataplane if required. */ | |
2377 | if (inform_dataplane) | |
2378 | zebra_evpn_sync_mac_dp_install(mac, false /* set_inactive */, | |
2379 | false /* force_clear_static */, | |
2380 | __func__); | |
2381 | ||
2382 | /* Inform BGP if required. */ | |
2383 | if (inform_client) | |
2384 | zebra_evpn_mac_send_add_del_to_client(mac, old_bgp_ready, | |
2385 | new_bgp_ready); | |
2386 | ||
2387 | /* Process all neighbors associated with this MAC, if required. */ | |
2388 | if (upd_neigh) | |
2389 | zebra_evpn_process_neigh_on_local_mac_change(zevpn, mac, 0, | |
2390 | es_change); | |
2391 | ||
2392 | return 0; | |
2393 | } | |
ad6ca5f4 | 2394 | |
3198b2b3 | 2395 | int zebra_evpn_del_local_mac(struct zebra_evpn *zevpn, struct zebra_mac *mac, |
00a7710c | 2396 | bool clear_static) |
ad6ca5f4 | 2397 | { |
ad6ca5f4 PR |
2398 | bool old_bgp_ready; |
2399 | bool new_bgp_ready; | |
b16e8004 | 2400 | |
46d6f5a2 | 2401 | if (IS_ZEBRA_DEBUG_VXLAN) |
ef7b8be4 DL |
2402 | zlog_debug("DEL MAC %pEA VNI %u seq %u flags 0x%x nbr count %u", |
2403 | &mac->macaddr, zevpn->vni, mac->loc_seq, mac->flags, | |
46d6f5a2 | 2404 | listcount(mac->neigh_list)); |
ad6ca5f4 PR |
2405 | |
2406 | old_bgp_ready = zebra_evpn_mac_is_ready_for_bgp(mac->flags); | |
00a7710c | 2407 | if (!clear_static && zebra_evpn_mac_is_static(mac)) { |
ad6ca5f4 PR |
2408 | /* this is a synced entry and can only be removed when the |
2409 | * es-peers stop advertising it. | |
2410 | */ | |
8b07f173 | 2411 | zebra_evpn_mac_clear_fwd_info(mac); |
ad6ca5f4 | 2412 | |
b16e8004 DS |
2413 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC) { |
2414 | char mac_buf[MAC_BUF_SIZE]; | |
2415 | ||
ad6ca5f4 | 2416 | zlog_debug( |
ef7b8be4 DL |
2417 | "re-add sync-mac vni %u mac %pEA es %s seq %d f %s", |
2418 | zevpn->vni, &mac->macaddr, | |
ad6ca5f4 | 2419 | mac->es ? mac->es->esi_str : "-", mac->loc_seq, |
b16e8004 DS |
2420 | zebra_evpn_zebra_mac_flag_dump( |
2421 | mac, mac_buf, sizeof(mac_buf))); | |
2422 | } | |
ad6ca5f4 PR |
2423 | |
2424 | /* inform-bgp about change in local-activity if any */ | |
2425 | if (!CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL_INACTIVE)) { | |
2426 | SET_FLAG(mac->flags, ZEBRA_MAC_LOCAL_INACTIVE); | |
2427 | new_bgp_ready = | |
2428 | zebra_evpn_mac_is_ready_for_bgp(mac->flags); | |
2429 | zebra_evpn_mac_send_add_del_to_client( | |
2430 | mac, old_bgp_ready, new_bgp_ready); | |
2431 | } | |
2432 | ||
1a4f9efd AK |
2433 | /* re-install the inactive entry in the kernel */ |
2434 | zebra_evpn_sync_mac_dp_install(mac, true /* set_inactive */, | |
ad6ca5f4 PR |
2435 | false /* force_clear_static */, |
2436 | __func__); | |
2437 | ||
2438 | return 0; | |
2439 | } | |
2440 | ||
00a7710c AK |
2441 | /* flush the peer info */ |
2442 | zebra_evpn_mac_clear_sync_info(mac); | |
2443 | ||
ad6ca5f4 PR |
2444 | /* Update all the neigh entries associated with this mac */ |
2445 | zebra_evpn_process_neigh_on_local_mac_del(zevpn, mac); | |
2446 | ||
2447 | /* Remove MAC from BGP. */ | |
46d6f5a2 | 2448 | zebra_evpn_mac_send_del_to_client(zevpn->vni, &mac->macaddr, mac->flags, |
ad6ca5f4 PR |
2449 | false /* force */); |
2450 | ||
2451 | zebra_evpn_es_mac_deref_entry(mac); | |
2452 | ||
8b07f173 AK |
2453 | /* remove links to the destination access port */ |
2454 | zebra_evpn_mac_clear_fwd_info(mac); | |
2455 | ||
ad6ca5f4 PR |
2456 | /* |
2457 | * If there are no neigh associated with the mac delete the mac | |
2458 | * else mark it as AUTO for forward reference | |
2459 | */ | |
2460 | if (!listcount(mac->neigh_list)) { | |
2461 | zebra_evpn_mac_del(zevpn, mac); | |
2462 | } else { | |
2463 | UNSET_FLAG(mac->flags, ZEBRA_MAC_ALL_LOCAL_FLAGS); | |
2464 | UNSET_FLAG(mac->flags, ZEBRA_MAC_STICKY); | |
2465 | SET_FLAG(mac->flags, ZEBRA_MAC_AUTO); | |
2466 | } | |
2467 | ||
2468 | return 0; | |
2469 | } | |
7bce3535 | 2470 | |
5ff58d0a | 2471 | void zebra_evpn_mac_gw_macip_add(struct interface *ifp, |
2472 | struct zebra_evpn *zevpn, | |
2473 | const struct ipaddr *ip, | |
2474 | struct zebra_mac **macp, | |
2475 | const struct ethaddr *macaddr, | |
2476 | vlanid_t vlan_id, bool def_gw) | |
7bce3535 | 2477 | { |
3198b2b3 | 2478 | struct zebra_mac *mac; |
47c58929 PG |
2479 | ns_id_t local_ns_id = NS_DEFAULT; |
2480 | struct zebra_vrf *zvrf; | |
2481 | ||
096f7609 | 2482 | zvrf = ifp->vrf->info; |
47c58929 PG |
2483 | if (zvrf && zvrf->zns) |
2484 | local_ns_id = zvrf->zns->ns_id; | |
7bce3535 | 2485 | |
b83d220a | 2486 | if (!*macp) { |
2487 | mac = zebra_evpn_mac_lookup(zevpn, macaddr); | |
2488 | if (!mac) | |
2489 | mac = zebra_evpn_mac_add(zevpn, macaddr); | |
2490 | *macp = mac; | |
2491 | } else | |
2492 | mac = *macp; | |
7bce3535 PR |
2493 | |
2494 | /* Set "local" forwarding info. */ | |
8b07f173 | 2495 | zebra_evpn_mac_clear_fwd_info(mac); |
7bce3535 PR |
2496 | SET_FLAG(mac->flags, ZEBRA_MAC_LOCAL); |
2497 | SET_FLAG(mac->flags, ZEBRA_MAC_AUTO); | |
e4c3ece6 AK |
2498 | if (def_gw) |
2499 | SET_FLAG(mac->flags, ZEBRA_MAC_DEF_GW); | |
5ff58d0a | 2500 | else |
2501 | SET_FLAG(mac->flags, ZEBRA_MAC_SVI); | |
7bce3535 | 2502 | mac->fwd_info.local.ifindex = ifp->ifindex; |
47c58929 | 2503 | mac->fwd_info.local.ns_id = local_ns_id; |
7bce3535 | 2504 | mac->fwd_info.local.vid = vlan_id; |
7bce3535 | 2505 | } |
243b74ed | 2506 | |
f6371c34 | 2507 | void zebra_evpn_mac_svi_del(struct interface *ifp, struct zebra_evpn *zevpn) |
243b74ed | 2508 | { |
3198b2b3 | 2509 | struct zebra_mac *mac; |
243b74ed | 2510 | struct ethaddr macaddr; |
e4c3ece6 | 2511 | bool old_bgp_ready; |
243b74ed AK |
2512 | |
2513 | if (!zebra_evpn_mh_do_adv_svi_mac()) | |
2514 | return; | |
2515 | ||
2516 | memcpy(&macaddr.octet, ifp->hw_addr, ETH_ALEN); | |
2517 | mac = zebra_evpn_mac_lookup(zevpn, &macaddr); | |
2518 | if (mac && CHECK_FLAG(mac->flags, ZEBRA_MAC_SVI)) { | |
2519 | if (IS_ZEBRA_DEBUG_EVPN_MH_ES) | |
2520 | zlog_debug("SVI %s mac free", ifp->name); | |
2521 | ||
e4c3ece6 | 2522 | old_bgp_ready = zebra_evpn_mac_is_ready_for_bgp(mac->flags); |
243b74ed | 2523 | UNSET_FLAG(mac->flags, ZEBRA_MAC_SVI); |
e4c3ece6 AK |
2524 | zebra_evpn_mac_send_add_del_to_client(mac, old_bgp_ready, |
2525 | false); | |
243b74ed AK |
2526 | zebra_evpn_deref_ip2mac(mac->zevpn, mac); |
2527 | } | |
2528 | } | |
2529 | ||
f6371c34 | 2530 | void zebra_evpn_mac_svi_add(struct interface *ifp, struct zebra_evpn *zevpn) |
243b74ed | 2531 | { |
3198b2b3 | 2532 | struct zebra_mac *mac = NULL; |
243b74ed AK |
2533 | struct ethaddr macaddr; |
2534 | struct zebra_if *zif = ifp->info; | |
e4c3ece6 AK |
2535 | bool old_bgp_ready; |
2536 | bool new_bgp_ready; | |
243b74ed | 2537 | |
e4c3ece6 AK |
2538 | if (!zebra_evpn_mh_do_adv_svi_mac() |
2539 | || !zebra_evpn_send_to_client_ok(zevpn)) | |
243b74ed AK |
2540 | return; |
2541 | ||
2542 | memcpy(&macaddr.octet, ifp->hw_addr, ETH_ALEN); | |
2543 | ||
2544 | /* dup check */ | |
2545 | mac = zebra_evpn_mac_lookup(zevpn, &macaddr); | |
2546 | if (mac && CHECK_FLAG(mac->flags, ZEBRA_MAC_SVI)) | |
2547 | return; | |
2548 | ||
2549 | /* add/update mac */ | |
2550 | if (IS_ZEBRA_DEBUG_EVPN_MH_ES) | |
2551 | zlog_debug("SVI %s mac add", zif->ifp->name); | |
2552 | ||
e4c3ece6 AK |
2553 | old_bgp_ready = (mac && zebra_evpn_mac_is_ready_for_bgp(mac->flags)) |
2554 | ? true | |
2555 | : false; | |
2556 | ||
e4c3ece6 | 2557 | zebra_evpn_mac_gw_macip_add(ifp, zevpn, NULL, &mac, &macaddr, 0, false); |
e4c3ece6 AK |
2558 | |
2559 | new_bgp_ready = zebra_evpn_mac_is_ready_for_bgp(mac->flags); | |
2560 | zebra_evpn_mac_send_add_del_to_client(mac, old_bgp_ready, | |
2561 | new_bgp_ready); | |
243b74ed | 2562 | } |